Ivys Recipes

  • About
  • Recipe Index
  • Recipes by Meals
    • Appetizers and Snacks
    • Desserts
    • Side-Dish
    • Soups
    • Drinks
  • Recipes by Meal Time
    • Breakfast
    • Dinner
menu icon
go to homepage
  • About
  • Recipe Index
  • Recipes by Meals
    • Appetizers and Snacks
    • Desserts
    • Side-Dish
    • Soups
    • Drinks
  • Recipes by Meal Time
    • Breakfast
    • Dinner
search icon
Homepage link
  • About
  • Recipe Index
  • Recipes by Meals
    • Appetizers and Snacks
    • Desserts
    • Side-Dish
    • Soups
    • Drinks
  • Recipes by Meal Time
    • Breakfast
    • Dinner
×

Slow Cooker Flank Steak with Garlic and Au Jus Recipe

Published: Nov 9, 2025 by Ivy · This post may contain affiliate links · Leave a Comment

Jump to Recipe· 4.2 from 85 reviews

```html

If you're craving a melt-in-your-mouth dinner that practically prepares itself, then the Slow Cooker Flank Steak with Garlic and Au Jus Recipe is about to become your new best friend. This dish combines the rich, hearty flavors of a perfectly seared flank steak with the deep, savory essence of garlic and a luscious au jus that soaks into every tender bite. It’s comfort food elevated with ease, delivering restaurant-quality results right from your slow cooker, making weeknight dinners or weekend gatherings effortlessly delicious.

Ingredients You'll Need

A raw piece of red meat lies flat on a brown parchment paper in the center of the image, showing a textured surface with some white fat streaks. Surrounding the meat are small white bowls containing different ingredients: a slab of light yellow butter on the left, sliced white onion rings at the bottom center, clear olive oil, brown liquid, and various dry spices with colors ranging from black pepper, dried green herbs, light beige powders, and white salt. Three whole peeled garlic cloves are placed on the white marbled surface near the top right. Fresh green parsley leaves are placed on both the top left and bottom right corners of the white marbled background. photo taken with an iphone --ar 4:5 --v 7

Simple ingredients, yet each plays a crucial role in building layers of flavor and tender texture in this Slow Cooker Flank Steak with Garlic and Au Jus Recipe. From the fragrant Italian seasoning to the richness of butter, they come together in perfect harmony.

  • Flank steak (2 pounds): This lean cut is perfect for slow cooking, yielding wonderfully tender slices or shreds.
  • Garlic powder (1 teaspoon): Adds a subtle but essential garlic aroma that penetrates the meat deeply.
  • Onion powder (1 teaspoon): Enhances savory notes without adding extra moisture to the dish.
  • Italian seasoning blend (1 teaspoon): Brings a blend of fragrant herbs that uplift the meat’s flavor profile.
  • Salt (½ teaspoon): Balances and brings out natural flavors without overwhelming.
  • Pepper (½ teaspoon): Provides a gentle spicy kick to complement the richness.
  • Extra virgin olive oil (2 tablespoons): For searing the steak to lock in flavors and create a beautiful crust.
  • Thinly sliced onion (1 cup): Softens as it cooks slowly, infusing gentle sweetness throughout.
  • Garlic cloves (3): Fresh garlic adds punchy, aromatic notes unlike any powder can replicate.
  • Au jus mix (1 package): The base of the delicious sauce that pools around the meat, enriching every bite.
  • Beef broth (1 cup): Adds moisture and a deep beefy richness to the slow-cooked au jus.
  • Unsalted butter (¼ cup): Melted into the au jus, it gives the sauce its silky texture and a hint of indulgence.
  • Fresh parsley (for garnish): Adds a pop of color and fresh herbal brightness upon serving.

How to Make Slow Cooker Flank Steak with Garlic and Au Jus Recipe

Step 1: Prep and Season Your Steak

Start by prepping your slow cooker with a light spray of cooking oil to prevent sticking. Then, generously season the flank steak with garlic powder, onion powder, Italian seasoning, salt, and pepper. This simple seasoning blend ensures the meat is flavorful in every bite.

Step 2: Sear to Lock In Flavor

Heat the extra virgin olive oil in a large skillet over high heat and sear the seasoned flank steak on both sides until it develops a golden-brown crust. This step is essential to create complex flavors and seal in juices before slow cooking.

Step 3: Place Steak in Slow Cooker and Add Aromatics

Transfer your seared steak to the slow cooker. Soften the garlic cloves and sliced onions by microwaving them briefly for about 3 minutes, which helps mellow their sharpness. Distribute the softened garlic and onions evenly around the steak for that wonderful aroma to infuse the meat while cooking.

Step 4: Prepare and Pour Au Jus Mixture

In a small bowl, whisk together the au jus mix and beef broth until fully combined. Pour this flavorful liquid over the steak, garlic, and onions, so it seeps into the meat as it slowly cooks, transforming into a rich, savory sauce.

Step 5: Add Butter and Slow Cook

Top the steak with the unsalted butter, which will melt slowly to enrich the au jus with a velvety finish. Cover the slow cooker and set it to low for 6 to 8 hours or high for 3 to 4 hours. This slow cooking process breaks down the meat’s fibers for a fork-tender texture.

Step 6: Slice or Shred and Serve

Once cooked, remove the flank steak from the slow cooker. Depending on your preference, you can either slice the steak against the grain for perfect pieces or shred it for a more rustic feel. For extra freshness and color, sprinkle with fresh parsley before serving.

How to Serve Slow Cooker Flank Steak with Garlic and Au Jus Recipe

The image shows a dish with two layers, served on a white plate placed on a white marbled surface. The bottom layer is creamy mashed potatoes, white in color with a smooth texture. The top layer is shredded brown meat with a slightly moist appearance, scattered evenly over the potatoes. Small bits of green herbs are sprinkled on top of the meat, adding a touch of color. Surrounding the edges is a thin layer of brown gravy that blends into the mashed potatoes. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh parsley is the classic garnish that cuts through the richness with a hint of herbal brightness. For an extra touch, consider a drizzle of good-quality olive oil or a sprinkle of cracked black pepper to enhance the presentation and boost flavor complexity.

Side Dishes

This Slow Cooker Flank Steak with Garlic and Au Jus Recipe pairs beautifully with mashed potatoes to soak up every drop of the decadent au jus. You can also try roasted vegetables or a crisp green salad to balance the meal with some freshness and crunch.

Creative Ways to Present

For a more casual approach, pile shredded flank steak on toasted sandwich rolls for decadent French dip sandwiches, ideal for game day or weekend lunches. Alternatively, serve slices alongside polenta or creamy risotto to create a comforting, elegant plate that wows your guests.

Make Ahead and Storage

Storing Leftovers

Store any leftover Slow Cooker Flank Steak with Garlic and Au Jus Recipe in an airtight container in the refrigerator for up to 4 days. The meat will absorb even more flavor overnight, making your next meal just as delicious.

Freezing

This recipe freezes beautifully. Portion the steak with its au jus into freezer-safe containers or bags and freeze for up to 3 months. Thaw in the refrigerator overnight for best results before reheating.

Reheating

To reheat, gently warm the meat and sauce in a saucepan over low heat, stirring occasionally until heated through to preserve tenderness and moisture. You can also reheat in the microwave, just be sure to cover it and stir halfway through to avoid drying out.

FAQs

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

Absolutely! While flank steak is perfect for slow cooking due to its texture and flavor, you can also use skirt steak or sirloin tip. Just keep in mind cooking times might vary slightly depending on thickness and cut.

What is the best way to slice flank steak?

Always slice flank steak against the grain—that is, perpendicular to the muscle fibers—to ensure each bite is tender and easy to chew. This technique makes a huge difference in the eating experience.

Can I prepare this recipe in advance?

Yes! You can season and sear the steak a day ahead, then refrigerate it, making your slow cooker prep quick and hassle-free when you’re ready to cook.

Is the au jus mix necessary, or can I make my own?

You can certainly make your own au jus from scratch with beef drippings, broth, and seasoning if you prefer, but the au jus mix offers a convenient and flavorful shortcut that works brilliantly here.

How can I make this recipe lower in sodium?

Use low-sodium beef broth and reduce or omit added salt, depending on your taste preferences. You can also choose a low-sodium au jus mix or make your own with fresh ingredients.

Final Thoughts

There’s nothing quite like the cozy satisfaction of a hearty, slow-cooked meal that fills your kitchen with irresistible aromas and delights your taste buds with savory goodness. The Slow Cooker Flank Steak with Garlic and Au Jus Recipe is that kind of dish—effortlessly impressive and deeply comforting. Give it a try and see how it quickly becomes a favorite in your recipe rotation!

```

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Slow Cooker Flank Steak with Garlic and Au Jus Recipe

Slow Cooker Flank Steak with Garlic and Au Jus Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.2 from 85 reviews
  • 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
Print Recipe
Pin Recipe

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.

Have you made this recipe? I'd love to see it!

Click here to Follow me on Pinterest

More Dinner

  • Butter Lemon Garlic Shrimp (20 Minute Recipe) + Video Recipe
    Butter Lemon Garlic Shrimp (20 Minute Recipe) + Video Recipe
  • Orange Glazed Salmon with Rosemary and Pomegranate Recipe
    Orange Glazed Salmon with Rosemary and Pomegranate Recipe
  • Lemon Pepper Hot Smoked Salmon Recipe
    Lemon Pepper Hot Smoked Salmon Recipe
  • Beef & Vegetables Chop Suey (Stir Fry Recipe) Recipe
    Beef & Vegetables Chop Suey (Stir Fry Recipe) Recipe

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Hey, I’m Ivy!

I’m a 28-year-old mom to my little prince, Pitter, who loves cooking and exploring flavors from around the world. What started in my home kitchen is now a space where I share simple, global-inspired recipes made with love.

 

Learn more

Popular

  • Brown Butter Apple Strudel Blondies with Salted Caramel Drizzle Recipe
    Brown Butter Apple Strudel Blondies with Salted Caramel Drizzle Recipe
  • Mini Pistachio and Coffee Cheesecakes Recipe
    Mini Pistachio and Coffee Cheesecakes Recipe
  • Chocolate Easter Nests Recipe
    Chocolate Easter Nests Recipe
  • Apple Pie Truffles Recipe
    Apple Pie Truffles Recipe

Footer

as seen in:

↑ back to top

Explore

  • Appetizers and Snacks
  • Breakfast
  • Soups
  • Dinner
  • Side-Dish
  • Desserts
  • Drinks

About

  • Privacy Policy
  • Terms & Conditions
  • Contact
  • Disclosure
  • DMCA

We may earn from qualifying purchases through affiliate links at no extra cost to you.

Copyright © 2025 Ivys Recipes. All rights reserved.