01 - Evenly coat beef cubes with kosher salt and black pepper on all sides.
02 - Heat a large skillet over medium-high heat. Sear beef cubes in batches until browned on all sides, approximately 2–3 minutes per batch. Transfer browned beef to the slow cooker.
03 - Arrange baby potatoes, onion slices, and carrots in the slow cooker, distributing them evenly around the beef.
04 - In a small bowl, whisk together melted butter, minced garlic, fresh thyme, rosemary, paprika, and red pepper flakes until well combined.
05 - Pour the garlic butter mixture over the beef and vegetables. Add beef broth to the slow cooker.
06 - Cover and cook on LOW setting for 7–8 hours, or until beef is fork-tender and potatoes are fully cooked through.
07 - Gently stir the mixture, taste, and adjust seasoning if necessary. Garnish with chopped fresh parsley before serving.