01 - Pat steak cubes dry with paper towels and season thoroughly with salt, pepper, Italian herbs, and smoked paprika, ensuring even coverage on all sides.
02 - Heat 1 tablespoon butter in a large skillet over medium-high heat. Sear steak cubes in batches for 1-2 minutes per side until browned. Transfer to the crockpot.
03 - Add minced garlic and onion to the skillet, adding more butter if needed. Sauté for 2-3 minutes until fragrant. Pour in beef broth and Worcestershire sauce, scraping up browned bits from the bottom.
04 - Pour the garlic and onion mixture over the steak in the crockpot. Add remaining butter on top and stir gently to distribute evenly.
05 - Cover and cook on LOW setting for 4 hours until steak reaches desired tenderness and flavors have melded together.
06 - Taste and adjust seasoning if necessary. Garnish generously with fresh chopped parsley and serve hot.