Preheat Oven to 425 degrees. Place butter in a pan or skillet and place in oven while preheating to melt
In a mixing bowl add the bisquick , lemon lime soda and sour cream.
Mix together until combined , the dough will be slightly sticky.
Carefully fold in frozen blueberries
Turn the dough out on to a flat clean surface sprinkled with plenty of bisquick . Making both side on coated . Pat the dough down to about 1 1/2 inches thick and cut biscuits with a biscuit cutter . SEE NOTES
Place biscuits in the pan with the melted butter . Bake in the preheated oven for 15-20 minutes or util golden brown on top.
Mix glaze in a small bowl
Spoon glaze over warm biscuits
Best served warm