Bourbon Gravy Garlic Potato Flank Steak

This slow cooker dinner is the definition of set-it-and-forget-it comfort. Thin strips of flank steak, halved baby Yukon Gold potatoes, and plenty of garlic simmer all day in a rich bourbon-mushroom gravy.

The result is fork-tender beef, buttery potatoes, and a glossy sauce that begs to be spooned over rice. With just five ingredients and five minutes of prep, it's the kind of meal that makes a busy weeknight feel like a special occasion.

This recipe takes the classic pot roast concept and gives it a bourbon-laced twist. Flank steak, sliced thin, cooks low and slow until it's so tender it practically melts. Baby potatoes soak up the savory gravy, and the garlic roasts into sweet, mellow nuggets.

Everything cooks in one pot, with no browning or stirring required. Just layer the ingredients, cover, and walk away. When you come back, dinner is ready—rich, hearty, and deeply satisfying.

Ingredients

Why this recipe works

The slow cooker does all the work here, turning a tough cut like flank steak into fork-tender pieces. Cooking on LOW for eight hours allows the collagen in the meat to break down slowly, resulting in beef that's moist and tender, not dry or chewy. The potatoes cook in the same gravy, absorbing the bourbon and mushroom flavors as they soften.

The bourbon-mushroom gravy is the heart of this dish. It's rich, savory, and slightly sweet, with a deep umami note from the mushrooms. As it simmers, it thickens slightly and coats every piece of beef and potato.

The butter adds richness and helps create a silky, glossy sauce. The result is a one-pot meal that tastes like it simmered all day—because it did.

Notes and substitutions

Flank steak is the star here, but any thinly sliced beef cut, such as sirloin or round, will work. Slice it against the grain into thin strips so it becomes tender as it cooks. Baby Yukon Gold potatoes are ideal because they hold their shape and have a buttery texture. If you can't find them, red potatoes or fingerlings are good substitutes.

The bourbon-mushroom gravy is the flavor base. Use a good-quality store-bought gravy or make your own. If you prefer a thicker sauce, whisk a tablespoon of cornstarch with a little cold water and stir it in during the last 30 minutes of cooking.

The butter adds richness—don't skip it. For a dairy-free version, use olive oil or a plant-based butter substitute.

• flank steak: sirloin or round steak, thinly sliced
• baby Yukon Gold potatoes: red potatoes or fingerlings, halved
• bourbon mushroom gravy: store-bought beef gravy with a splash of bourbon and sautéed mushrooms
• salted butter: unsalted butter plus a pinch of salt

Equipment

• 6-quart slow cooker
• Cutting board
• Chef's knife
• Measuring cups and spoons
• Serving spoon