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Slow Cooker Flank Steak with Garlic and Au Jus Recipe

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  • Author: Ivy
  • Prep Time: 20 minutes
  • Cook Time: 6 hours
  • Total Time: 6 hours 20 minutes
  • Yield: 6 servings
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: American

Description

This Slow Cooker Flank Steak recipe offers a deliciously tender and flavorful meal, perfect for an easy weeknight dinner. Seasoned with garlic, onion, and Italian herbs, then slow-cooked in a savory au jus sauce, this flank steak becomes melt-in-your-mouth tender and infused with rich flavors. A simple preparation that results in a hearty dish served with butter and fresh parsley.


Ingredients

Main Ingredients

  • 1 2-pound flank steak
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon Italian seasoning blend
  • ½ teaspoon salt
  • ½ teaspoon pepper
  • 2 tablespoons extra virgin olive oil
  • 1 cup thinly sliced onion
  • 3 cloves garlic
  • 1 package au jus mix
  • 1 cup beef broth
  • ¼ cup unsalted butter
  • Fresh parsley, for garnish (optional)


Instructions

  1. Prepare the slow cooker: Spray an 8-quart slow cooker with cooking spray to prevent sticking and set it aside.
  2. Season the steak: Mix garlic powder, onion powder, Italian seasoning, salt, and pepper, then rub this mixture evenly over the flank steak.
  3. Sear the steak: Heat the olive oil in a large skillet over high heat. Sear the seasoned flank steak on both sides until browned, about 2-3 minutes per side.
  4. Place steak in slow cooker: Transfer the seared flank steak to the prepared slow cooker.
  5. Prepare garlic and onions: In a small bowl, microwave the sliced onions and whole garlic cloves for about 3 minutes to soften them, then distribute evenly around the steak in the slow cooker.
  6. Make the au jus sauce: In another bowl, whisk together the au jus mix and beef broth until fully combined, then pour this mixture over the steak, onions, and garlic in the slow cooker.
  7. Add butter: Place the unsalted butter on top of the flank steak.
  8. Cook low and slow: Cover the slow cooker and cook on low for 6-8 hours or on high for 3-4 hours, until the steak is very tender.
  9. Finish and serve: Remove the flank steak from the slow cooker and shred or slice as desired. The meat will be tender enough to shred easily if cooked on low heat. Garnish with fresh parsley if desired and serve.

Notes

  • For best results, cook on low for 6-8 hours to ensure maximum tenderness.
  • You can use more or less garlic depending on your preference.
  • Serve with mashed potatoes, rice, or steamed vegetables to complete the meal.
  • Leftover steak can be stored in an airtight container in the refrigerator for up to 3 days.
  • If you prefer a thicker sauce, remove the steak after cooking and simmer the liquid on the stovetop until reduced to your liking.