Make mealtime effortless with this Slow Cooker Flank Steak recipe! Tender, juicy steak slow-cooked to perfection, infused with savory flavors. A simple and delicious dinner option that’s perfect for any occasion!

"Tender slow-cooked flank steak served with savory seasonings."
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You will love this tender slow cooker flank steak recipe, it’s one of my go-to recipes, and perfect for meal prep.

This easy crockpot flank steak can be used to make delicious dishes like stir-fry, fajitas, or steak salads.

Serve with a drizzle of Chimichurri Sauce, or Alfredo Dip, my favorite way to eat leftover flank steak, is over a simple steak salad.

Cooking flank steak in the slow cooker, is so easy! Perfectly tender, and absolutely delicious!

"Juicy and flavorful slow cooker flank steak with a rich brown glaze."

Why You Will Love This Recipe!

  • Tender and Juicy: Slow cooking ensures the flank steak becomes incredibly tender, making every bite melt in your mouth.
  • Effortless Cooking: Simply set it and forget it—this recipe requires minimal prep time and does all the work for you.
  • Flavor Packed: The slow cooker infuses the steak with rich, savory flavors that make each slice irresistible.
  • Versatile: Perfect for serving with a variety of sides, from mashed potatoes to a fresh salad or tacos.
  • Great for Meal Prep: Make a big batch and enjoy it for multiple meals throughout the week.

Ingredients Needed

Ingredients needed for Slow Cooker Flank Steak on kitchen table.
  • Flank Steak: The star of the dish, flank steak is lean, flavorful, and becomes wonderfully tender when slow-cooked.
  • Garlic: Adds a rich, aromatic base that enhances the savory depth of the steak.
  • Onion: Provides a subtle sweetness and balance to the rich flavor of the meat.
  • Beef Broth: Keeps the steak moist and infuses it with savory, umami flavor as it cooks.
  • Soy Sauce: Adds a savory, slightly salty depth to the marinade, boosting the overall flavor of the steak.
  • Olive Oil: Helps sear the steak before cooking, locking in the flavors and moisture.
  • Balsamic Vinegar: Adds a touch of tangy sweetness that complements the beef and caramelizes during cooking.
  • Dried Herbs (e.g., thyme, rosemary): Bring earthy, aromatic notes to the steak, elevating the flavor profile.
  • Salt and Pepper: Essential for seasoning, bringing out the natural flavors of the steak and other ingredients.

How To Make Slow Cooker Flank Steak

Place onions and liquid on the bottom of the slow cooker.

Step One: Season the flank steak with salt, pepper, and any desired dried herbs.

Step Two: In a large skillet, heat olive oil over medium-high heat. Sear the flank steak for 2-3 minutes on each side until browned

Add all of the ingredients needed for Slow Cooker Flank Steak on the bottom of the crockpot.

Step Three: Place the sliced onion and garlic at the bottom of the slow cooker. Lay the seared flank steak on top of the onions and garlic in the slow cooker.

Step Four: Pour beef broth, soy sauce, and balsamic vinegar over the steak. Cover the slow cooker and cook on low for 6-8 hours, or until the steak is tender and easily shreds. Once cooked, remove the steak, shred it with a fork, and return it to the slow cooker to absorb more flavor. Serve with your favorite sides!

Slow Cooker Flank Steak with a delicious caramelized crust."

Slow Cooker Flank Steak Recipe Tips

  • Sear the Steak First: Searing the flank steak before adding it to the slow cooker helps lock in flavor and creates a beautiful crust.
  • Use Enough Liquid: Make sure there’s enough broth or liquid to cover the steak halfway, ensuring it stays moist and tender during the cooking process.
  • Let it Rest Before Shredding: Allow the flank steak to rest for a few minutes after cooking, making it easier to shred and more flavorful.
  • Add Veggies for Extra Flavor: Toss in additional vegetables like carrots, bell peppers, or potatoes for a complete meal that cooks alongside the steak.
  • Adjust Seasonings: Taste the cooking liquid halfway through and adjust salt, pepper, or balsamic vinegar to suit your flavor preferences.
  • Use Leftovers for Other Meals: Shredded slow-cooked flank steak makes a great filling for tacos, sandwiches, or salads for easy meal prepping.
"Tender slow-cooked flank steak served with savory sauce."

How To Serve Flank Steak

"Slow Cooker Flank Steak with caramelized onions and rich broth."

Storing

  • Storing: Store leftover slow cooker flank steak in an airtight container in the refrigerator for up to 3-4 days. Make sure to include any juices or sauce from the slow cooker to keep the steak moist.
  • Freezing: To freeze, shred the cooked flank steak and place it in a freezer-safe bag or container with some of the cooking liquid. It will stay good for up to 2-3 months in the freezer.
  • Reheating: Reheat the steak in a covered pan over low heat, adding a bit of broth or water to prevent it from drying out. Alternatively, reheat in the microwave in short intervals, adding moisture as needed to keep it tender.

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Equipment Used

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Slow Cooker Flank Steak

Slow Cooker Flank Steak

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Prep Time: 10 minutes
Cook Time: 8 hours
Total Time: 8 hours 10 minutes
Servings: 8 Servings

Description

Enjoy tender and flavorful Slow Cooker Flank Steak with minimal effort! This easy recipe uses simple ingredients to create a juicy, melt-in-your-mouth steak that’s perfect for dinner, tacos, sandwiches, and more.

Ingredients 

  • 2 pounds Flank Steak, about 1-1.5 kg
  • 4 cloves Garlic, minced
  • 1 large Onion, sliced
  • 1 cup Beef Broth,
  • 1/4 cup Soy Sauce,
  • 2 tablespoons Olive Oil,
  • 2 tablespoons Balsamic Vinegar: 2 tablespoons,
  • 1 teaspoon Thyme
  • 1 teaspoon Rosemary
  • 1 teaspoon Kosher salt, adjust to taste
  • 1/2 teaspoon Black pepper, adjust to taste

Instructions

  • Season the flank steak with salt, pepper, and any desired dried herbs.
  • In a large skillet, heat olive oil over medium-high heat. Sear the flank steak for 2-3 minutes on each side until browned.
  • Place the sliced onion and garlic at the bottom of the slow cooker.
  • Lay the seared flank steak on top of the onions and garlic in the slow cooker.
  • Pour beef broth, soy sauce, and balsamic vinegar over the steak.
  • Cover the slow cooker and cook on low for 6-8 hours, or until the steak is tender and easily shreds.
  • Once cooked, remove the steak, shred it with a fork, and return it to the slow cooker to absorb more flavor. Serve with your favorite sides!

Equipment

  • Slow Cooker, or Ninja Foodi Possible Pro Slow Cooker
  • Tongs

Nutrition

Serving: 1ServingCalories: 207kcalCarbohydrates: 3gProtein: 26gFat: 9gSaturated Fat: 3gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gCholesterol: 68mgSodium: 869mgPotassium: 460mgFiber: 0.5gSugar: 2gVitamin A: 13IUVitamin C: 2mgCalcium: 37mgIron: 2mg

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