Sweet Pepper Butter Pork Sirloin Roast Step-by-step instructions

Before you start

Before starting, ensure the pork sirloin roast is thawed if frozen. Slice the bell peppers into thick strips and the onion into thin wedges. There’s no need to season the meat in advance—the butter and vegetables provide plenty of flavor.

Have a 6-quart slow cooker ready, and if you plan to serve with mashed potatoes, prepare them just before serving. The prep time is only about 10 minutes, so this dish is perfect for busy mornings.

Instructions

Layer and Butter

1. 1Layer the Roast and Vegetables
   Place the pork sirloin roast in the center of the slow cooker. Scatter the sliced bell peppers and onion over and around the roast, tucking some underneath for even cooking.
   Look for The roast sits snugly in the pot, surrounded by colorful pepper strips and onion slices.
   Tip If the roast is uneven, trim it slightly to fit flat in the slow cooker for even cooking.
2. 2Add the Butter
   Place the stick of salted butter directly on top of the roast. It will melt during cooking, basting the meat and vegetables.
   Look for The butter sits as a golden block on the roast, ready to melt.
   Tip Cutting the butter into a few pieces helps it melt faster and coat more surface area.

At the end of this phase, the roast sits in the slow cooker surrounded by colorful pepper strips and onion slices, with the butter perched on top.

The scene is vibrant and fresh, with the raw pork a deep pink against the glossy vegetables. Nothing is cooking yet, but the setup is complete and ready to go.

Slow Cook

3. 3Cook Low and Slow
   Cover the slow cooker and cook on LOW for 8 to 10 hours, or on HIGH for 4 to 5 hours, until the pork is fork-tender and shreds easily. Let it rest for 3 minutes before slicing.
   Look for The meat is deeply browned and pulls apart with a fork; the peppers are soft and the juices are bubbling.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resist lifting the lid during cooking—each peek adds 20 minutes to the cook time.

After the long, slow cook, the kitchen fills with the aroma of roasted peppers and buttery pork. The meat is deeply browned, the peppers are soft and caramelized, and the liquid is bubbling gently. The roast should be fork-tender and easily pull apart, with the sauce golden and emulsified.

Shred and Serve

4. 4Shred the Pork
   Remove the roast to a cutting board. Let rest for at least 3 minutes, then shred with two forks. Return the shredded pork to the slow cooker and toss with the peppers, onions, and juices.
   Look for The pork pulls apart into tender strands, and the sauce is thick and golden.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip For extra flavor, let the shredded pork sit in the juices for 10 minutes before serving.
5. 5Serve and Enjoy
   Spoon the shredded pork and peppers over mashed potatoes or onto buns. Drizzle with extra pan juices.
   Look for The pork is moist and glistening, the peppers are sweet, and the sauce is rich and buttery.
   Tip Serve with a side of crusty bread to soak up every drop of jus.

Once shredded and tossed with the peppers and juices, the pork glistens with a buttery sheen. The sauce is thick enough to coat the meat, and the vegetables are sweet and tender. The final dish looks rich and comforting, ready to be piled onto plates or sandwiches.

Common mistakes

One common mistake is lifting the lid to check on the roast, which releases heat and extends cooking time. Another is using a too-lean cut like tenderloin, which can dry out; sirloin roast is ideal.

Overcrowding the slow cooker can also lead to uneven cooking, so ensure the roast fits comfortably. Finally, don’t skip the rest time after shredding—this allows the juices to redistribute, keeping the meat moist.

How to tell it’s done

The pork is done when it reaches an internal temperature of 145°F (63°C) and is fork-tender, meaning it shreds easily with a fork. The meat should be moist and pull apart into strands without resistance.

The peppers and onions should be soft and translucent, and the cooking liquid should be bubbling and slightly thickened. If the pork is still tough, continue cooking for another 30 minutes and check again.

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