01 -
Combine salt, black pepper, smoked paprika, onion powder, and garlic powder in a small bowl and mix thoroughly.
02 -
Rub the seasoning mixture evenly over both sides of the boneless beef chuck roast.
03 -
Heat butter or oil in a large skillet over medium-high heat. Sear the chuck roast until browned on both sides, about 3-4 minutes per side, then remove from heat.
04 -
Place the seared chuck roast into a 5-6 quart slow cooker. Arrange halved baby potatoes, carrots, and sliced onions around the meat.
05 -
In a separate bowl, gradually whisk together Coca Cola, Worcestershire sauce, beefy onion soup mix, brown gravy mix, and minced garlic. Take care to whisk slowly to minimize fizzing.
06 -
Pour the prepared sauce evenly over the roast and vegetables in the slow cooker.
07 -
Cover and cook on low heat for 8 hours or on high heat for 6 hours until the beef is tender and pulls apart easily. Avoid removing the lid during cooking to maintain moisture and tenderness.
08 -
Optionally garnish with chopped fresh parsley before serving.