Sweet Pepper Butter Beef Brisket: Easy Slow Cooker

This sweet pepper butter beef brisket is the ultimate set-it-and-forget-it dinner. A well-marbled brisket goes into the slow cooker with just a few simple ingredients: bell peppers, onions, and a whole stick of butter.

After hours of gentle simmering, the meat becomes impossibly tender, shredding with a fork and soaking up a rich, buttery jus. Serve it over mashed potatoes or with crusty bread to catch every drop. It's a hands-off recipe that delivers big, comforting flavor with almost no effort.

This recipe is all about simplicity and reward. You start with a trimmed beef brisket, layer it with colorful peppers and onions, and top it with a generous amount of salted butter. Then you cover the slow cooker and walk away.

Over the next eight to ten hours, the brisket slowly breaks down, becoming fork-tender and infused with the sweet, mellow flavor of the peppers and the richness of the butter. The result is a succulent, shreddable beef that's perfect for sandwiches, over mashed potatoes, or on its own. The cooking method is foolproof: low heat and plenty of time.

Ingredients

Why this recipe works

The slow cooker does all the work here. Cooking brisket on low heat for an extended period allows the tough connective tissue in the meat to break down into gelatin, which gives the beef its melt-in-your-mouth texture.

The low, steady temperature also lets the flavors of the peppers, onions, and butter meld together into a cohesive, savory-sweet sauce without any attention from you.

The butter is the secret to this dish's luxurious mouthfeel. As it melts, it emulsifies with the meat's natural juices and the vegetable liquids, creating a glossy, golden pan jus that clings to the shredded beef. This simple addition transforms a basic pot roast into something special, with a silky sauce that tastes like you spent hours reducing it—but you didn't.

Notes and substitutions

For the best results, choose a well-marbled brisket with a good fat cap. Trim it to fit your slow cooker, but leave some fat on; it adds flavor and moisture during the long cook. The peppers and onions should be sliced into thick strips so they hold their shape and texture over the hours. Sweet yellow onions are ideal for their mild, sweet flavor, but any onion will work.

This recipe is incredibly forgiving. You can use any color bell peppers, or even a mix of poblano and bell for a slight kick. If you don't have salted butter, use unsalted and add a pinch more salt.

The cooking time is flexible: anywhere from 8 to 10 hours on low will yield tender meat. If you're short on time, you can cook on high for 5 to 6 hours, but low is better for the most tender result.

• beef brisket: chuck roast or bottom round roast; cook time may vary slightly.
• salted butter: unsalted butter plus 1/4 tsp salt
• bell peppers: any color bell peppers or a mix of poblano and bell peppers for mild heat
• sweet yellow onion: white or red onion

Equipment

• 6-quart slow cooker
• Tongs
• Two forks for shredding
• Cutting board
• Chef's knife
• Measuring spoons