Slow Cooker Flank Steak: Unbelievably Tender Recipe!

Fri Aug 22 2025

Flank steak is a flavorful cut of beef, beloved for its robust taste, but often feared for its potential toughness. Traditionally, it's best enjoyed quickly seared and sliced against the grain to maintain tenderness. However, what if we told you there's a method that transforms this lean cut into an unbelievably tender, melt-in-your-mouth experience with minimal effort? Enter the slow cooker. If you're searching for the ultimate recipe for flank steak in slow cooker that promises fall-apart tenderness and rich flavor, you've come to the right place.

Why Choose Flank Steak for Slow Cooking?

Flank steak, cut from the abdominal muscles of the cow, is known for its distinctive grain and leanness. While fantastic for grilling, its muscle fibers can become chewy if not cooked properly. The magic of a slow cooker lies in its ability to break down these tough connective tissues over extended periods at low temperatures. This process renders the steak incredibly supple, allowing it to absorb flavors deeply and become supremely tender, making it an ideal candidate for this cooking method.

The Ultimate Slow Cooker Flank Steak Recipe

This detailed guide will walk you through the precise recipe for flank steak in slow cooker, ensuring a culinary success that will impress even the most discerning palates. Prepare for a succulent, flavorful meal that practically cooks itself!

Ingredients

1.5 2 lbs flank steak
1 tbsp olive oil
1 large onion, sliced
3 cloves garlic, minced
1 cup beef broth (low sodium)
1/4 cup soy sauce (low sodium)
2 tbsp Worcestershire sauce
1 tbsp apple cider vinegar
1 tsp dried thyme
1/2 tsp black pepper
Optional: 1 tbsp cornstarch mixed with 2 tbsp cold water (for thickening sauce)
Fresh parsley, chopped (for garnish)

Instructions

Sear the Flank Steak (Optional but Recommended): Heat olive oil in a large skillet over medium-high heat. Sear the flank steak for 2-3 minutes per side until beautifully browned. This step adds a layer of rich flavor.
Prepare Aromatics: In the same skillet (or directly in the slow cooker if searing isn't done), sauté the sliced onion until softened, about 5 minutes. Add minced garlic and cook for another minute until fragrant.
Combine in Slow Cooker: Transfer the seared flank steak (if seared) and the sautéed onions and garlic to your slow cooker.
Whisk Sauce: In a medium bowl, whisk together the beef broth, soy sauce, Worcestershire sauce, apple cider vinegar, dried thyme, and black pepper.
Pour and Cook: Pour the sauce mixture over the flank steak in the slow cooker, ensuring the steak is mostly submerged.
Cook: Cover and cook on LOW for 6-8 hours, or on HIGH for 3-4 hours, until the flank steak is fork-tender and easily shreds.
Thicken Sauce (Optional): Carefully remove the flank steak from the slow cooker and set aside. If desired, whisk the cornstarch slurry into the liquid in the slow cooker. Cook on HIGH for 15-20 minutes, or until the sauce thickens to your desired consistency.
Shred and Serve: Once the steak is cool enough to handle, use two forks to shred it against the grain, or slice it into desired portions. Return the shredded or sliced steak to the slow cooker with the thickened sauce, tossing to coat.
Garnish: Garnish with fresh chopped parsley before serving.

Tips for Perfection

Don't Skip the Sear: While optional, searing the flank steak beforehand creates a beautiful crust and deepens the overall flavor profile. It's a small step that makes a big difference in this recipe for flank steak in slow cooker.
Adjust Seasoning: Taste the sauce before adding the cornstarch slurry. Adjust salt or pepper as needed. You can also add a pinch of red pepper flakes for a subtle kick.
Slice Against the Grain: If you prefer to slice rather than shred your flank steak, remember to always cut against the grain to maximize tenderness.
Versatile Serving: This incredibly versatile dish pairs wonderfully with mashed potatoes, rice, steamed vegetables, or even tucked into warm tortillas for delicious tacos.

Nutritional Benefits & Serving Suggestions

Flank steak is an excellent source of lean protein, essential for muscle repair and growth, and it also provides a good amount of iron, vital for energy and red blood cell production. Pairing this savory slow cooker flank steak with nutrient-dense sides like roasted sweet potatoes, quinoa, or a vibrant green salad creates a balanced and wholesome meal.

Conclusion

You Might Also Like: 2025 08 Agra Tourist Destination (opens in a new tab)

Say goodbye to tough, chewy flank steak and hello to an unbelievably tender, flavorful experience. This recipe for flank steak in slow cooker revolutionizes how you think about this economic cut of beef, turning it into a star dish that requires minimal hands-on time. Enjoy the rich aromas filling your kitchen and the delightful flavors on your plate!