The BEST Slow Cook Flank Steak Recipe Ever!

Flank steak, a lean and flavorful cut, is often overlooked for its potential to become incredibly tender and succulent when prepared correctly. While many associate it with quick grilling, the true magic unfolds when you embrace the slow cooker. This comprehensive guide will walk you through creating what we confidently call the best slow cook flank steak recipe, transforming a relatively tough cut into a melt-in-your-mouth masterpiece that’s both healthy and utterly delicious.

Why Choose Slow Cooking for Flank Steak?

Flank steak, being a leaner muscle, contains long fibers that can be chewy if not cooked properly. High-heat, quick cooking methods often require slicing against the grain to maximize tenderness. However, the low-and-slow approach of a slow cooker breaks down these connective tissues over hours, rendering the meat incredibly tender and juicy without needing excessive fat. It’s a game-changer for busy weeknights, allowing you to set it and forget it, coming home to a perfectly cooked meal that exemplifies a truly great slow cook flank steak recipe.

Nutritional Benefits of Lean Flank Steak

Flank steak is a fantastic source of lean protein, essential for muscle repair and growth, satiety, and overall health. It’s also rich in vital nutrients such as iron, zinc, and B vitamins, which support energy metabolism and immune function. By slow cooking, we lock in these nutrients and create a dish that’s not only flavorful but also contributes positively to a balanced diet, especially when paired with plenty of vegetables.

Ingredients for Our Ultimate Slow Cook Flank Steak Recipe

• 1.5-2 lbs flank steak
• 1 large onion, sliced
• 4 cloves garlic, minced
• 1 cup beef broth (low sodium)
• 1/2 cup red wine (optional, or more broth)
• 2 tbsp Worcestershire sauce
• 1 tbsp Dijon mustard
• 1 tsp dried thyme
• 1/2 tsp smoked paprika
• Salt and freshly ground black pepper to taste
• 2 tbsp olive oil (for searing)
• Fresh parsley, chopped (for garnish)

Step-by-Step Instructions for the Perfect Slow Cook Flank Steak

1. Prepare the Steak: Pat the flank steak dry with paper towels. Season generously on both sides with salt and pepper.
2. Sear (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 adds a depth of flavor. Transfer the seared steak to your slow cooker.
3. Add Aromatics: Add the sliced onion and minced garlic around the steak in the slow cooker.
4. Combine Liquids and Seasonings: In a separate bowl, whisk together the beef broth, red wine (if using), Worcestershire sauce, Dijon mustard, dried thyme, and smoked paprika. Pour this mixture over the steak and onions in the slow cooker.
5. Slow Cook: Cover and cook on LOW for 6-8 hours, or on HIGH for 3-4 hours, until the steak is fork-tender. The exact time may vary depending on your slow cooker and the thickness of the steak.
6. Rest and Serve: Once cooked, carefully remove the flank steak from the slow cooker and let it rest on a cutting board for 10-15 minutes before slicing. Slice thinly against the grain.
7. Make a Gravy (Optional): For a richer sauce, you can thicken the slow cooker liquid. Skim any excess fat, then transfer the liquid to a saucepan. Bring to a simmer and whisk in a cornstarch slurry (1 tbsp cornstarch mixed with 2 tbsp cold water) until thickened to your desired consistency.

Tips for Achieving the BEST Results

• Don’t Skip the Sear: While optional, searing adds a crucial layer of flavor through the Maillard reaction.
• Slice Against the Grain: Even after slow cooking, slicing against the grain is key to maximizing tenderness. Identify the direction of the muscle fibers and slice perpendicular to them.
• Experiment with Flavors: Feel free to add other herbs like rosemary or bay leaves, or a touch of balsamic vinegar for a different twist on this amazing slow cook flank steak recipe.
• Serve Creatively: This tender flank steak is excellent served with mashed potatoes, roasted vegetables, over rice, or even shredded for tacos or sandwiches.

Storing Leftovers

Store any leftover slow-cooked flank steak in an airtight container in the refrigerator for up to 3-4 days. It reheats beautifully and can be repurposed into various meals.

Conclusion: Your New Go-To Slow Cook Flank Steak Recipe

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Embrace the simplicity and deliciousness of slow cooking with this incredible slow cook flank steak recipe. It transforms an often-challenging cut into a wonderfully tender, flavorful, and nutrient-rich meal that will impress your family and friends. Say goodbye to tough flank steak and hello to your new favorite comfort food!

Slow Cooker Flank Steak

Slow Cooker Flank Steak

Slow Cooker Flank Steak

Slow Cooker Flank Steak

Slow Cooker Flank Steak