Steak Frites with Herb Mustard

Short Description

Steak Frites with Herb Mustard is a French-inspired dish that pairs juicy, seared steak with crispy golden fries and a zesty herb mustard sauce. It’s a simple yet elegant meal that delivers bistro-quality flavor in every bite.

Why You’ll Love This Recipe

This classic steakhouse dish is elevated by the bright, tangy herb mustard sauce, making it more than just steak and fries. It’s a satisfying combination of textures and flavors—crisp fries, tender beef, and creamy, herbaceous sauce. Ideal for special dinners or weekend indulgence.

this Recipe

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• Strip steak or ribeye
• Russet potatoes
• Olive oil
• Fresh rosemary or thyme (for fries)
• Salt and pepper
• Butter
• Garlic cloves, smashed
• Dijon mustard
• Whole grain mustard
• Fresh parsley, finely chopped
• Fresh chives, finely chopped
• Lemon juice
• Mayonnaise or crème fraîche (optional, for creamier sauce)

directions

1. Preheat oven to 425°F (220°C). Cut potatoes into thin fries and soak in cold water for 30 minutes.
2. Drain and dry the potatoes thoroughly. Toss with olive oil, salt, pepper, and chopped rosemary or thyme.
3. Spread on a baking sheet and roast for 30–40 minutes, flipping halfway through, until golden and crisp.
4. Pat steak dry and season with salt and pepper.
5. Heat a skillet over high heat with a bit of oil. Sear steak 3–4 minutes per side or until desired doneness.
6. During the last minute of cooking, add butter and smashed garlic to the pan and baste the steak.
7. Let steak rest for 5 minutes before slicing.
8. For the herb mustard sauce, mix Dijon, whole grain mustard, herbs, lemon juice, and mayo or crème fraîche (if using).
9. Serve steak with fries and a generous drizzle of herb mustard sauce.

Servings and timing

Serves 2 people. Total time is about 1 hour, including 15 minutes prep time and 45 minutes cooking time.

Variations

• Use sweet potatoes for the fries for a twist.
• Swap the steak cut for filet mignon or flank steak.
• Add tarragon or dill to the herb mustard for a different flavor profile.
• Grill the steak instead of pan-searing for a smoky touch.

storage/reheating

Store leftover steak and fries separately in the fridge for up to 3 days. Reheat fries in the oven at 375°F (190°C) to keep them crisp, and gently reheat steak in a skillet or microwave. The herb mustard sauce can be stored in the fridge for up to 4 days.

FAQs

What cut of steak works best?

Strip steak or ribeye are ideal due to their marbling and tenderness.

Can I make the fries ahead of time?

You can partially bake them and finish crisping them just before serving.

Is the herb mustard spicy?

It has a mild tanginess but isn’t very spicy. Adjust mustard types to your preference.

Can I fry the potatoes instead of baking?

Yes, deep frying gives an even crispier result if you prefer.

Can I use dried herbs for the sauce?

Fresh herbs are best, but you can use dried in smaller quantities.

What’s a good side dish for this?

A light green salad or sautéed vegetables pair well.

Can I cook the steak to well done?

Yes, but it may be less tender. Use a thermometer to check doneness.

What’s a quick substitute for herb mustard?

Mix Dijon with a touch of honey and dried herbs in a pinch.

How do I know when the fries are done?

They should be golden brown and crisp on the outside, soft inside.

Can I grill the potatoes?

Yes, parboil them first and grill until crispy.

Conclusion

Steak Frites with Herb Mustard is a classic yet approachable dish that brings the charm of a French bistro to your kitchen. With juicy steak, perfectly crisp fries, and a vibrant mustard sauce, it’s a meal that’s sure to impress without complicated steps.

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