Step 1: Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper or lightly grease it.
Step 2: Carefully separate the biscuit dough into 8 individual biscuits. On a clean surface, gently flatten each biscuit into an oval shape, about ¼ inch thick.
Step 3: Place about 2 ounces (a small handful) of thinly sliced roast beef onto one half of each flattened biscuit. Top the roast beef with about 3 tablespoons of shredded cheese.
Step 4: Fold the other half of the biscuit dough over the filling. Pinch the edges firmly together to seal, creating a crescent or half-moon shape. You can use a fork to crimp the edges for a more secure seal.
Step 5: In a small bowl, combine the melted butter and garlic powder. Brush the tops of the sealed biscuits with this garlic butter mixture.
Step 6: Arrange the biscuits on the prepared baking sheet. Bake for 15-18 minutes, or until the biscuits are golden brown and the cheese is melted and bubbly.
Step 7: While the biscuits are baking, gently warm the beef broth in a small saucepan on the stove or in the microwave. Serve the warm French Dip biscuits immediately with the hot beef broth for dipping.