Sweet Pepper Butter Pork Shoulder: One-Pot Slow Cooker

This is the kind of recipe that makes a busy day feel like a win. A well-marbled pork shoulder, a heap of sweet peppers and onions, and a stick of butter go into the slow cooker in minutes.

Hours later, the meat is so tender it falls apart at the touch of a fork, and the peppers and onions have melted into a sweet, buttery sauce that coats every strand. Serve it over mashed potatoes, on crusty rolls, or straight from the pot—it's that good.

This slow cooker pork shoulder is a set-it-and-forget-it dinner that delivers big flavor with minimal effort. The combination of sweet bell peppers, yellow onions, and a generous amount of salted butter creates a rich, savory-sweet sauce that infuses the pork as it cooks low and slow.

The result is succulent, pull-apart meat that's perfect for weeknight dinners, weekend gatherings, or meal prep. Just layer the ingredients, walk away, and come back to a meal that tastes like it simmered all day—because it did.

Ingredients

Why this recipe works

The magic of this recipe lies in the slow, gentle cooking. Low heat over several hours breaks down the collagen in the pork shoulder, turning a tough, inexpensive cut into buttery, fork-tender meat.

The fat renders out and bastes the meat, keeping it moist and adding deep flavor. Meanwhile, the peppers and onions soften and release their natural sugars, which caramelize in the butter and juices, creating a glossy, flavorful sauce.

The simplicity is also key. There's no searing, no browning, no complicated steps—just layer everything in the slow cooker and let it work. The butter melts and emulsifies with the meat juices and vegetable liquids, forming a rich pan jus that needs no thickening. This hands-off approach means you can start it in the morning and have a satisfying, home-cooked dinner ready with almost no active time.

Notes and substitutions

Choose a well-marbled pork shoulder (also labeled Boston butt or pork butt). The fat is essential for flavor and moisture; don't trim it off. If using a bone-in roast, the bone adds flavor—just remove it before shredding. For the peppers, use a mix of red and green for color and sweetness, but any color works. Sweet yellow onions are ideal, but white or Vidalia onions are fine substitutes.

Use a 6-quart slow cooker to give everything room. A smaller pot may overcrowd and cook unevenly. Salted butter is specified for a reason—it seasons the dish as it melts. If using unsalted, add an extra 1/4 teaspoon of salt.

The recipe is forgiving: you can adjust the amount of peppers or onions to your taste, and the seasoning can be tweaked with garlic powder or smoked paprika, though the original keeps it pure.

• boneless pork shoulder: bone-in pork shoulder (increase cook time by 1-2 hours; remove bone before shredding)
• salted butter: unsalted butter plus 1/4 teaspoon salt
• red and green bell peppers: any color bell peppers or a mix of sweet mini peppers
• sweet yellow onions: white onions or Vidalia onions

Equipment

• 6-quart slow cooker
• cutting board
• chef's knife
• measuring spoons
• serving spoon
• tongs