Step 1

Preheat the oven to 425 degrees F.  Put the butter in a 9x13-inch baking dish and place the dish in the oven until the butter is melted.  Remove from the oven.

Step 2

In a large bowl, stir together the Bisquick, 7-Up and sour cream.  The dough will be sticky.  Turn the dough onto a floured work surface.  You may need to sprinkle a little more of the baking mix into the dough if you find that it's too sticky.  Roll or pat the dough into a 1-inch thick circle.  Cut circles out of the dough using a round cutter (or you can use anything else that is round-- a small plastic bowl or a glass).  Place the biscuits in the pan of melted butter.

Step 3

Bake until the biscuits are golden brown, 10 to 12 minutes.  Remove from the oven and let the biscuits sit and soak in all of the melted butter.