Easy - for beginners
Preheat oven to 450 degrees. Cut sour cream into the biscuit mix, add 7-Up. Makes a very soft dough. Sprinkle additional biscuit mix onto the cutting board and pat dough out. Melt butter in 9 inch square pan. Cut biscuits out in circles (use a drinking glass if no biscuit cutter) and put in pan over the butter. Bake for 12-15 minutes or until golden brown.
Recipe made 10 biscuits using the glass to cut them out, only 9 will fit in that square pan so will have to use 2 pans or just use cookie sheet, either way will work.