As I stood in my kitchen today, the comforting aroma of garlic and herbs wafted through the air, swirling together with the warmth of the oven. It was time to showcase my favorite side dish: Crispy Roasted Mustard Potatoes. These golden-brown bites of heaven are not only incredibly easy to whip up, but they also transform a simple meal into something extraordinary. With a delightful mustardy tang and a crispy outer layer, they make for a flavor-packed side, perfect for impressing dinner guests or simply elevating your weeknight dinners. Plus, they pair beautifully with just about anything you can think of, from grilled meats to fresh salads. Are you ready to take your potato game to the next level? Let’s dive in!

Why are Crispy Roasted Mustard Potatoes irresistible?
Crispy, golden perfection: These potatoes boast a beautiful, crunchy exterior that gives way to tender, fluffy insides - a texture that will have everyone coming back for seconds!
Zesty flavor explosion: With bold Dijon and whole-grain mustard, expect a vibrant flavor that pairs perfectly with garlic and fresh herbs.
Quick and easy: In just over an hour, you can have a restaurant-quality side dish that requires minimal effort.
Versatile companion: Whether served alongside grilled chicken, fish, or a hearty salad, they suit any meal! Try these with your favorite homemade dressings for an extra kick!
Crowd-pleaser: Perfect for gatherings or family dinners, these potatoes will wow your guests and elevate your culinary repertoire!
Crispy Roasted Mustard Potatoes Ingredients
• Get ready for a flavor-packed experience!
For the Potatoes
- Baby potatoes – 1.5 lbs (about 700 g), halved or quartered for even cooking.
- Kosher salt – 1.5 tsp, essential for enhancing the potatoes' natural flavors.
- Freshly ground black pepper – 1 tsp, to add a touch of warmth.
For the Mustard Mixture
- Dijon mustard – 3 tbsp, the star of our crispy roasted mustard potatoes for a tangy kick!
- Whole-grain mustard – 1 tbsp, for added texture and flavor depth.
- Olive oil – 3 tablespoon (plus extra for the pan), helps achieve that crispy finish.
- Garlic – 2 cloves, finely minced or grated, adding aromatic depth to the dish.
- Smoked paprika – 1 tsp, giving a delightful smokiness to contrast with the tanginess.
- Dried thyme – 1 tsp, enhancing the earthy note of the potatoes.
- Dried rosemary – 1 tsp, crushed for maximum flavor infusion.
- Onion powder – 1 tsp, an optional but recommended addition for richness.
- Honey or maple syrup – 1 tsp, for balancing the flavors with a hint of sweetness.
- Lemon juice or apple cider vinegar – 1 tbsp, brightening the entire dish!
For Garnish
- Fresh parsley – 2 tbsp, finely chopped, for a pop of color and freshness.
- Flaky sea salt – to finish, adding a delightful crunch with every bite.
- Lemon wedges – for serving, enhancing flavors with a splash of citrus.
Step‑by‑Step Instructions for Crispy Roasted Mustard Potatoes
Step 1: Preheat the Oven
Begin by preheating your oven to 425°F (220°C). To ensure even cooking and a crispy finish, place a large, heavy baking sheet or roasting pan inside the oven while it warms up. This helps achieve that perfect golden-brown crust on your crispy roasted mustard potatoes.
Step 2: Prepare the Potatoes
Wash and thoroughly scrub the baby potatoes under cold water, leaving the skins on for extra flavor and texture. Halve them for quicker cooking, or quarter if they’re larger. Pat the potatoes dry with a clean kitchen towel to remove excess moisture, which is key to achieving maximum crispiness.
Step 3: Make the Mustard Mixture
In a large mixing bowl, whisk together the Dijon mustard, whole-grain mustard, olive oil, minced garlic, kosher salt, black pepper, smoked paprika, dried thyme, dried rosemary, onion powder (if using), honey or maple syrup (if desired), and lemon juice or apple cider vinegar. Whisk until everything is smoothly combined and well-emulsified, creating a flavorful marinade for your potatoes.
Step 4: Coat the Potatoes
Add the dried and halved potatoes to the bowl filled with the mustard mixture. Gently toss them until each piece is thoroughly coated with the tangy marinade. This step is essential for infusing your crispy roasted mustard potatoes with vibrant flavor.
Step 5: Let the Potatoes Marinate
Allow the coated potatoes to sit in the mustard marinade for about 5-10 minutes while the oven completes its preheating. This short resting time helps the flavors mingle and improves the overall taste of your dish, making your roasted potatoes truly irresistible.
Step 6: Prepare the Baking Sheet
Carefully remove the hot baking sheet from the oven using oven mitts. Drizzle or brush a little extra olive oil over the sheet to prevent sticking and enhance the browning process. This step sets the stage for producing crispy roasted mustard potatoes that everyone will love.
Step 7: Arrange the Potatoes
Transfer the marinated potatoes onto the hot baking sheet, spreading them out in a single, even layer with the cut sides facing down. Avoid overcrowding the potatoes to ensure they roast evenly, allowing each piece to develop that crisp, golden exterior.
Step 8: Roast the Potatoes
Return the baking sheet to the center rack of the preheated oven and roast the potatoes for 20 minutes without stirring. During this time, the potatoes will begin to caramelize and develop that desirable crispy texture essential for perfect crispy roasted mustard potatoes.
Step 9: Flip and Continue Roasting
After 20 minutes, carefully flip the potatoes over using a spatula, exposing the other side to the heat. Roast for an additional 15-20 minutes until they are deep golden brown and crispy around the edges. Keep an eye on them to prevent burning, as each oven varies.
Step 10: Finish and Garnish
Once the roasted potatoes are beautifully golden and crisp, remove them from the oven. Immediately sprinkle with flaky sea salt if desired for an added crunch. Toss gently to coat and then sprinkle with finely chopped fresh parsley, giving them a colorful final touch.
Step 11: Serve Hot
Serve your crispy roasted mustard potatoes hot, alongside lemon wedges for an extra zing. These flavorful bites are perfect for a weeknight dinner or as a show-stopping side at gatherings. Enjoy every delicious, crispy bite!

Crispy Roasted Mustard Potatoes Variations
Feel free to let your creativity shine with these delicious twists that enhance the crispy roasted mustard potatoes experience!
- Dairy-Free: Substitute olive oil for a vegan butter alternative to add a rich, buttery flavor without dairy.
- Herb Infusion: Use fresh herbs like rosemary and thyme instead of dried for a more aromatic experience that truly elevates the dish.
- Spicy Kick: Add a dash of cayenne pepper or red pepper flakes to the mustard mixture for an enticing heat that will warm your soul.
- Smoky Flavor: Incorporate smoked sea salt instead of regular to create a bold flavor profile that complements the roasted potatoes beautifully.
- Cheesy Touch: Sprinkle grated Parmesan cheese over the potatoes during the last 5 minutes of roasting for an irresistible cheesy crust.
- Lemon Zest: Add the zest of one lemon to the marinade for a bright, citrusy zing that will make your potatoes pop with freshness.
- Maple Mustard: Swap out the honey for maple syrup in the mixture to introduce a delightful sweetness that balances the tangy mustard.
- Extra Crispy: For unparalleled crunch, toss the potatoes with a sprinkle of cornmeal before baking and enjoy the spectacular texture!
No matter how you choose to customize them, these crispy roasted mustard potatoes are bound to become a beloved classic at your table! For an equally unforgettable side, try pairing them with these delicious smoky grilled vegetables.
What to Serve with Crispy Roasted Mustard Potatoes
These crispy delights beckon for companions that can elevate your meal with contrasting textures and harmonious flavors.
- Grilled Lemon Chicken: Juicy, zesty chicken pairs beautifully, complementing the mustard's tang with its citrusy notes.
- Roasted Asparagus: Tender-crisp asparagus offers a fresh contrast and adds vibrant color to your plate. The earthy flavor of the vegetable matches the spices in the potatoes deliciously!
- Creamy Coleslaw: A cool, creamy coleslaw brings a satisfying crunch that balances the crispy texture of the roasted potatoes. It’s an ideal side for summer barbecues!
- Oven-Baked Salmon: The rich, flaky salmon harmonizes with the mustard's tanginess while providing healthy omega-3s in every bite.
- Garlic Butter Green Beans: Tender green beans sautéed in garlic butter add a savory element that complements the mustard depth. This combo is a match made in comfort food heaven!
- Classic Caesar Salad: Crisp romaine and creamy dressing provide a refreshing contrast to the potatoes' warmth, making it a fantastic duo for any dinner table.
- Bright Citrus Salad: A fresh salad of oranges and grapefruit dressed in a light vinaigrette will enhance the robust flavors of the potatoes, providing a refreshing palate cleanser.
- Chardonnay: Enjoy a chilled glass of Chardonnay, its buttery notes mingling smoothly with the crispy roasted mustard potatoes, enhancing every bite!
Make Ahead Options
These Crispy Roasted Mustard Potatoes are ideal for meal prep, allowing you to save precious time during busy weeknights! To prep in advance, you can marinate the halved potatoes in the mustard mixture up to 24 hours before roasting. Simply follow steps 1 through 5 of the recipe, then cover the bowl with plastic wrap and refrigerate. When you're ready to cook, preheat the oven and prepare the baking sheet as instructed in step 6. Transfer the marinated potatoes directly onto the hot baking sheet and roast as directed. This not only saves time but ensures your potatoes are just as delicious with every bite, bursting with flavor thanks to the overnight marinade!
How to Store and Freeze Crispy Roasted Mustard Potatoes
Fridge: Store any leftover crispy roasted mustard potatoes in an airtight container for up to 3 days. Let them cool completely before sealing to maintain their crispiness.
Freezer: For longer storage, freeze the cooled roasted potatoes in a single layer on a baking sheet, then transfer them to an airtight freezer bag for up to 2 months.
Reheating: To reclaim that crunchy texture, reheat the frozen potatoes in the oven at 400°F (200°C) for about 15-20 minutes. This will help them crisp up again, just like when freshly made!
Room Temperature: If you need to leave them out, keep the crispy roasted mustard potatoes at room temperature for no more than 2 hours to ensure food safety.
Expert Tips for Crispy Roasted Mustard Potatoes
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Choose the Right Potatoes: Opt for baby potatoes or small Yukon Gold for better flavor and texture. They hold up well during roasting and crisp beautifully!
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Don’t Skip the Drying: Ensure your potatoes are very dry before marinating. Excess moisture will steam the potatoes rather than roast them, resulting in less crispiness.
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Hot Baking Sheet: Always place your potatoes on a preheated baking sheet. This jumpstarts the roasting process and helps develop that golden, crispy exterior.
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Single Layer is Key: Spread the potatoes in a single, even layer on the baking sheet. Overcrowding can lead to soggy spots instead of crisp goodness in your crispy roasted mustard potatoes.
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Adjust Roast Times: Keep an eye on your potatoes, as different ovens can vary in cooking times. Flipping them halfway ensures even browning and delicious crispness.
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Finish with Flair: Don't forget the finishing touches—flaky sea salt and fresh parsley brighten up the dish, elevating the overall flavor experience!

Crispy Roasted Mustard Potatoes Recipe FAQs
How do I choose the best potatoes for this recipe?
Absolutely! For the crispiest results, go for small Yukon Gold potatoes or baby potatoes. Their thicker skins hold up beautifully while roasting, adding flavor and texture. Look for clean, firm potatoes without any dark spots or blemishes to ensure they’re fresh.
How should I store leftover crispy roasted mustard potatoes?
You can store any leftovers in an airtight container in the fridge for up to 3 days. Make sure they are completely cooled before sealing them in to retain as much crispiness as possible. If you’re feeling ambitious, you could also leave them to cool and spread them out on a plate, allowing air circulation before transferring them into a container.
Can I freeze crispy roasted mustard potatoes?
Yes, you can! First, allow the potatoes to cool completely. Then, lay them out in a single layer on a baking sheet and freeze them for about an hour. Once frozen, transfer them to an airtight freezer bag or container. They’ll keep well for up to 2 months. When you're ready to enjoy, simply reheat them in the oven at 400°F (200°C) for 15-20 minutes to regain that delightful crunch.
What if my potatoes aren’t crispy enough?
No worries! If your potatoes don’t turn out as crispy as you’d like, it could be due to excess moisture or overcrowding on the baking sheet. Always ensure your potatoes are dry before roasting, and avoid overlapping them to allow for proper air circulation. For a second chance, just pop them back in the oven for an additional 5-10 minutes. Keep an eye on them, as they can go from perfect to too brown quickly!
Are there any dietary restrictions I should consider?
Very! If you’re serving guests with dietary restrictions, keep in mind that this recipe includes mustard, which can contain allergens like soy. The olive oil is generally safe for vegans, and you can easily substitute the honey or maple syrup with agave syrup to accommodate vegan diets. If you're preparing for pets, make sure any garlic is avoided, as it can be harmful to dogs.

Crispy Roasted Mustard Potatoes for Ultimate Flavor Bliss
Equipment
- Baking sheet
- Mixing bowl
- Oven
Ingredients
For the Potatoes
- 1.5 lbs baby potatoes halved or quartered for even cooking
- 1.5 teaspoon kosher salt essential for enhancing flavor
- 1 teaspoon freshly ground black pepper for added warmth
For the Mustard Mixture
- 3 tablespoon Dijon mustard the star of the dish
- 1 tablespoon whole-grain mustard for added texture
- 3 tablespoon olive oil plus extra for the pan
- 2 cloves garlic finely minced or grated
- 1 teaspoon smoked paprika for smokiness
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary crushed for maximum flavor
- 1 teaspoon onion powder optional but recommended
- 1 teaspoon honey or maple syrup for a hint of sweetness
- 1 tablespoon lemon juice or apple cider vinegar to brighten the dish
For Garnish
- 2 tablespoon fresh parsley finely chopped
- flaky sea salt to finish
- lemon wedges for serving
Instructions
Step‑by‑Step Instructions
- Preheat your oven to 425°F (220°C) and place a baking sheet inside to warm.
- Wash and scrub the baby potatoes, halve them for quicker cooking, and dry them with a towel.
- In a bowl, whisk together Dijon mustard, whole-grain mustard, olive oil, garlic, salt, black pepper, paprika, thyme, rosemary, onion powder, honey, and lemon juice.
- Add the potatoes to the mustard mixture and toss until coated.
- Let the potatoes marinate in the mixture for about 5-10 minutes.
- Remove the hot baking sheet from the oven and add a little olive oil to prevent sticking.
- Spread the marinated potatoes on the hot baking sheet in a single layer.
- Roast the potatoes for 20 minutes without stirring.
- After 20 minutes, flip the potatoes and roast for an additional 15-20 minutes until golden brown and crispy.
- Remove and sprinkle with flaky sea salt and fresh parsley before serving.
- Serve hot with lemon wedges.





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