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

Before you start

Before you start, make sure your slow cooker is clean and ready. Pat the pork sirloin roast dry with paper towels and season it generously with salt and pepper on all sides. Slice the bell peppers into thick strips and the onions into half-moons.

If you're making your own garlic-herb butter, soften the butter and mix it with minced garlic and your choice of fresh herbs—thyme, rosemary, or oregano all work well. Form the butter into a log and chill it until firm, then cut it into medallions. Have your egg noodles cooked and buttered just before serving.

Instructions

Layer and Butter

1. 1Layer the Roast
   Place the pork sirloin roast in the center of a 6-quart slow cooker. Scatter the sliced bell peppers and onions evenly over and around the roast, creating a bed of vegetables.
   Look for The roast sits in the center, surrounded by colorful peppers and onions.
   Tip No need to sear the meat—the slow cooker does all the work.
2. 2Add the Butter
   Place the medallions of garlic-herb compound butter on top of the roast, distributing them evenly so they melt over the meat as it cooks.
   Look for Butter medallions sit on the roast, ready to melt.
   Tip If the butter is very cold, let it sit at room temperature for a few minutes to soften.

You'll see the raw pork roast sitting in the center of the slow cooker, surrounded by vibrant strips of red and green bell peppers and sliced yellow onions. The medallions of garlic-herb butter are placed on top, waiting to melt. The scene is simple but promising—the colors are bright, and the butter adds a rich, inviting touch. Before moving on, ensure the roast is centered and the vegetables are evenly distributed around it.

Slow Cook and Shred

3. 3Cook Low and Slow
   Cover the slow cooker and cook on LOW for 8 hours or on HIGH for 4-5 hours, until the pork is tender and shreds easily with a fork. Let it rest for 3 minutes before slicing.
   Look for The aroma of garlic and herbs fills the kitchen as the pork simmers.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resist the urge to lift the lid—every peek lets heat escape and adds cooking time.
4. 4Shred the Pork
   Once the pork is fork-tender, transfer it to a cutting board. Let it rest for at least 3 minutes, then shred it with two forks, discarding any large pieces of fat.
   Look for The meat pulls apart easily into long, juicy strands.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip For extra flavor, return the shredded pork to the slow cooker and stir it into the juices.

After hours of slow cooking, the kitchen is filled with the irresistible aroma of garlic, herbs, and pork. The meat is visibly tender, and the peppers and onions have collapsed into a soft, jammy mixture. The butter has melted into a glossy, golden sauce.

When you insert a fork, it meets no resistance. The pork should shred easily with two forks, and the sauce should be bubbling gently. Check that the meat has reached a safe temperature and is fork-tender before proceeding.

Serve Over Noodles

5. 5Serve Over Noodles
   Spoon the shredded pork and peppers over warm buttered egg noodles. Ladle some of the garlic-herb butter gravy from the slow cooker over the top.
   Look for The pork glistens with buttery gravy, and the peppers are soft and sweet.
   Tip Use a slotted spoon to serve the pork if you prefer less sauce, or add extra gravy for a saucier plate.

The shredded pork is piled high on a bed of warm buttered egg noodles, with soft peppers and onions nestled in between. The garlic-herb butter gravy is spooned over the top, soaking into the noodles and coating the meat. The plate is hearty and comforting, with a beautiful contrast of colors and textures. The dish is ready to be served immediately, while it's still hot and steamy.

Common mistakes

One common mistake is not seasoning the pork well enough. Since the other ingredients are mild, a generous amount of salt and pepper is essential to bring out the flavor. Another is lifting the lid too often to check on the roast—this lets heat escape and extends the cooking time.

Finally, don't skip the rest time after the pork is cooked. Letting it rest for at least 3 minutes before shredding allows the juices to redistribute, ensuring moist, flavorful meat.

How to tell it’s done

The pork is done when it is fork-tender and easily shreds apart. The internal temperature should read at least 145°F (63°C) on an instant-read thermometer, but for the best texture, it should be cooked until it reaches 190-200°F (88-93°C) so the collagen breaks down and the meat becomes melt-in-your-mouth tender.

If you're unsure, use two forks to test: the meat should pull apart with no resistance. The peppers and onions should be soft and translucent, and the sauce should be bubbling and aromatic.

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