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Dinner · Part 2 of 3: Instructions

Tender Slow Cooker Garlic Butter Steak Strips Step-by-step instructions

Tender, glistening slow-cooked steak strips served on a white plate with garlic butter sauce.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before beginning, ensure that your slow cooker is clean and positioned on a stable, heat-resistant surface. Prepare the beef by slicing it into uniform, bite-sized strips, which ensures even cooking throughout the process.

Measure out your butter and ensure it is fully melted so that it incorporates easily with the minced garlic and fresh herbs. Having all ingredients measured and ready to go before you assemble the slow cooker prevents any last-minute scrambling and allows for a smooth, stress-free cooking experience from start to finish.

Ingredients at a glance (4)
  • 2 lb flank steak or sirloin, sliced into strips
  • 1/2 cup unsalted butter, melted
  • 4 cloves garlic, minced
  • 1 tbsp fresh parsley, chopped

Instructions

Beef Preparation

  1. Prepare the Beef
    Place the sliced steak strips into the bowl of the slow cooker. Arrange the strips in an even layer to ensure consistent heat distribution throughout the cooking process.
    Look for The beef strips should be evenly spread out in the bottom of the slow cooker.
    Tip Slice the beef against the grain to ensure the final result is as tender as possible.

At this phase, the beef strips should be arranged in a single layer at the bottom of the slow cooker. Ensure the strips are not bunched up, as this will result in uneven cooking. Once the beef is ready, you are prepared to introduce the flavorful garlic butter sauce.

Sauce Emulsion

  1. Prepare Garlic Butter
    In a small mixing bowl, combine the melted butter, minced garlic, and chopped fresh parsley. Whisk these ingredients together until the garlic is evenly distributed throughout the butter mixture, creating a fragrant base for the sauce.
    Look for The butter should be fully melted and the garlic well incorporated.
    Tip Use high-quality unsalted butter for the cleanest flavor profile in the final sauce.

The garlic butter mixture should look smooth, glossy, and highly aromatic. The minced garlic should be evenly dispersed throughout the melted butter, and the fresh parsley should be distributed well. You should be able to smell the sharp, savory scent of the garlic and the fresh, herbaceous notes of the parsley. If the butter begins to solidify, gently re-warm it before pouring it over the beef.

Slow Cooking

  1. Cook and Serve
    Pour the garlic butter mixture over the steak strips in the slow cooker. Cover and cook on low for 4 hours. Once finished, ensure the beef reaches an internal temperature of 145°F (63°C). Let the meat rest for at least 3 minutes before serving.
    Look for The steak strips should be glistening, tender, and swimming in a rich, aromatic garlic butter sauce.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Serve immediately while hot to maintain the best texture and flavor of the butter sauce.

At the end of the cooking cycle, the kitchen should be filled with the rich, savory aroma of garlic and cooked beef. The strips will look tender and glistening, coated in a thick, flavorful sauce.

The liquid in the slow cooker should have reduced slightly, concentrating the flavors. Before serving, verify the internal temperature of the meat and allow it to rest briefly to ensure the juices redistribute throughout the fibers.

Common mistakes

A common mistake is overcrowding the slow cooker, which can lead to uneven cooking and excess liquid that dilutes the garlic butter flavor. Always arrange the strips in an even layer to ensure consistent heat distribution.

Another frequent error is using a high-heat setting; this will cause the steak to toughen and lose its tenderness. Stick strictly to the low setting to allow the collagen in the beef to break down properly, which is the secret to achieving that signature, tender, melt-in-your-mouth consistency every single time.

How to tell it’s done

The steak is done when it is fork-tender and pulls apart easily with minimal resistance. To ensure safety and the best quality, use a meat thermometer to check that the thickest piece has reached an internal temperature of 145°F (63°C).

The juices should be clear, and the meat should appear cooked through with a consistent color throughout the strips, indicating that the low and slow method has successfully tenderized the protein.

  • Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest

Coming up in Part 3: common questions

  • Can other cuts of beef be used for this recipe?
  • Why is it important to slice the beef against the grain?
  • How can the sauce be made thicker?

Also in Part 3: variations (Spicy Garlic Butter, Lemon Herb Steak), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)