Flank Steak With Mustard-Caper Sauce

Cook: 6 min Cuisine: American

A flavorful flank steak with a tangy mustard-caper sauce, perfect for a quick dinner or impressive meal for guests, combining rich meat with sharp, savory flavors.

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Ingredients

  • 4 Tbsp. butter or margarine
  • 1 Tbsp. salad oil
  • 1 (about 1 1/2 lb.) flank steak
  • 3 Tbsp. dry vermouth or dry white wine
  • 1 Tbsp. Dijon mustard
  • 1/4 tsp. Worcestershire
  • 1 1/2 Tbsp. capers, drained well

Instructions

  1. Melt 1 tablespoon of butter with the oil in a wide frying pan over medium-high heat.
  2. Place the flank steak in the pan and cook uncovered until browned on both sides and still pink in the center, about 5 to 6 minutes total.

Tips & Substitutions

For a tender flank steak, avoid overcooking it; it should be medium-rare for the best texture. If you don't have dry vermouth, dry white wine or even a splash of cider vinegar can work as substitutes. Consider adding a pinch of garlic powder or fresh herbs to the mustard-caper sauce for extra flavor. For a twist, try serving it with a side of Summer Jambalaya.

Serving Suggestions

This flank steak pairs beautifully with roasted vegetables or a fresh salad. For a complete meal, serve it alongside mashed potatoes or rice. Drizzle the mustard-caper sauce over the steak just before serving for an added burst of flavor. It also complements dishes like Melanie'S Beef Stroganoff for a satisfying dinner.

Storage & Reheating

Store any leftover flank steak in an airtight container in the refrigerator for up to 3 days. To reheat, slice the steak and warm it gently in a skillet over low heat, adding a bit of broth or water to keep it moist. Avoid microwaving whole pieces to preserve texture.

Nutrition & Diet Analysis (per serving)

Each serving of Flank Steak With Mustard-Caper Sauce contains roughly 169 calories, with 1g protein, 4g carbohydrates, and 17g fat. Note that it is relatively high in sodium, at 561mg per serving (24% of the Daily Value).

169 kcal 8% DV
Protein Fat Carbs

Macronutrients

Protein 1.3g 3% DV
Total Fat 16.5g 21% DV
Carbs 4.1g 1% DV
Fiber 0.4g 1% DV
Sugar 1.6g 3% DV

Electrolytes

Sodium 561mg 24% DV
Potassium 145mg 3% DV
Cholesterol 19.7mg 7% DV

Vitamins & Minerals

Vitamin A 3.2mcg
Vitamin C 2.5mg 3% DV
Calcium 22.9mg 2% DV
Iron 1.1mg 6% DV
Diet fit Keto-friendly Under 400 cal
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use a different cut of beef for this recipe?

Yes, while flank steak is ideal, you can substitute it with skirt steak or sirloin. Just adjust the cooking time based on the thickness, as some cuts may require different cooking times to achieve the desired doneness.

How can I enhance the mustard-caper sauce?

To enhance the sauce, consider adding a teaspoon of honey for sweetness or a splash of lemon juice for brightness. Fresh herbs like parsley or dill can also add a fresh touch, complementing the capers nicely.

What can I serve with flank steak?

Flank steak is versatile; it pairs well with roasted potatoes, steamed asparagus, or a vibrant coleslaw. For a heartier meal, serve it with rice or a creamy pasta dish, such as those found in traditional American recipes.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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