This is what Mom always made when she wanted to impress guests. The onion gravy is so good you will want to drink it

This slow cooker 5-ingredient smothered beef roast is exactly the kind of dish Midwestern moms pulled out when company was coming over: unfussy, deeply comforting, and all about that silky onion gravy. It’s a classic pot roast-style recipe that leans on a generous amount of onions and a simple pantry gravy base to create a rich, almost drinkable sauce that soaks into every slice of beef.

The slow cooker does the work while you go about your day, and by dinnertime you have tender, sliceable roast blanketed in caramelized onion gravy that tastes like it cooked on the back of the stove all Sunday long.

Serve the smothered beef roast sliced thick, spooning plenty of the onion gravy over the top. It’s wonderful over creamy mashed potatoes, buttered egg noodles, or a bed of rice to catch every bit of the sauce. Add a simple green vegetable—like steamed green beans, roasted Brussels sprouts, or a crisp salad—to balance the richness. Warm dinner rolls or crusty bread are perfect for mopping up the extra gravy, which is half the reason to make this in the first place.