Step 1: In a bowl, toss the beef cubes with half of the minced garlic, Worcestershire sauce, soy sauce, paprika, and black pepper. Let it marinate for at least 15 minutes at room temperature.
Step 2: In a large skillet or wok, add olive oil and the sliced garlic. Turn the heat to medium-low and cook until the garlic turns golden brown and crispy. Remove the garlic chips and set aside, leaving the flavored oil in the pan.
Step 3: Increase the heat to high until the oil is shimmering. Add the beef in a single layer (work in batches if necessary to avoid crowding).
Step 4: Sear the beef for 1-2 minutes per side until a brown crust forms but the center remains tender. Do not overcook.
Step 5: Stir in the butter and any remaining marinade liquid. Toss for another 30 seconds to glaze the beef.
Step 6: Turn off the heat. Garnish generously with the reserved toasted garlic chips and serve immediately over hot rice.