Prepare the Ingredients: Cut the beef into bite-sized pieces and halve the baby potatoes.
Cook the Potatoes: Optionally, parboil the baby potatoes for a few minutes to soften them.
Sear the Beef: Heat olive oil in a skillet over medium-high heat. Sear the beef pieces until browned on all sides, then transfer to a slow cooker.
Make the Garlic Butter Sauce: In a small bowl, combine melted butter, garlic, onion powder, smoked paprika, thyme, rosemary, salt, and pepper. Stir to combine.
Combine Everything: Add the potatoes to the slow cooker, followed by the beef. Pour the garlic butter sauce over the top, and add beef broth to keep it moist.
Cook: Cover and cook on low for 6-8 hours or on high for 3-4 hours, until beef is tender and potatoes are soft.
