In a mixing bowl, combine flour, baking powder, salt, and sugar.
Cut the butter into pieces and drop into the flour mixture. With a pastry blender, fork, or knives, cut the butter into the mixture until all of the butter pieces are smaller than a pea.
Stir in 3/4 c of the milk and add 2-3 Tb more as needed to just mix together the dough.
On a floured surface, pat out the dough mixture to a smooth flat shape, about 3/4 inch thick. With a biscuit cutter or glass, cut biscuits, placing them on a baking stone/baking sheet. Form the scraps together and re-cut biscuits.
Take the final scraps and form them into a biscuit by hand. This usually makes around 10 biscuits, depending on how you pat out the dough.
Bake for about 10-13 minutes, or until just golden on top.