01 - Rub the beef cubes evenly with kosher salt and black pepper, ensuring all sides are coated.
02 - Heat a large skillet over medium-high heat. Sear the seasoned beef cubes in batches, cooking 2–3 minutes per batch until browned on all sides. Transfer the browned beef to the slow cooker.
03 - Arrange the halved baby potatoes, sliced onion, and carrot chunks around the beef in the slow cooker, distributing them evenly.
04 - In a small bowl, whisk together the melted butter, minced garlic, fresh thyme, chopped rosemary, paprika, and crushed red pepper flakes until thoroughly combined.
05 - Pour the garlic butter mixture evenly over the beef and vegetables in the slow cooker.
06 - Pour the beef broth into the slow cooker around the sides of the meat and vegetables.
07 - Cover and cook on LOW setting for 7–8 hours, or until the beef is fork-tender and the potatoes are fully cooked through.
08 - Gently stir the cooked mixture, taste and adjust seasoning with additional salt or pepper if desired. Garnish generously with chopped fresh parsley before serving.