Preheat oven to 400°F.
Line a baking sheet with parchment paper or use non-stick baking sheets.
In a large mixing bowl combine flour, baking powder, sugar, garlic salt.
Whisk until well combined.
Add butter and with a pastry blender or knives, cut into mix until small pea-sized crumbs start to form.
Add cheese and fold into mix.
Add milk and mix just until wet. Do not over mix.
Drop heaping spoonfuls onto baking sheet (approx 1/4 c).
Bake for 10-12 minutes, until biscuits are golden brown.
While biscuits bake, melt remaining butter in small mixing bowl in microwave (approx 30 seconds).
Add ¼ teaspoon garlic salt.
Stir with pastry brush.
Remove biscuits from oven, brush with melted butter mixture.