Preheat oven to 475
Mix milk and vinegar in a measuring cup or small bowl, allow to sit
In a large mixing bowl combine flour, salt, and sugar,
Using a pastry blender mix in the cold diced butter until a pebbly sandlike texture.
Add milk mixture and stir until just barely combined.
Dump the mixture out onto a floured surface and fold your dough several times over. Do not overwork the dough! It should still be a bit crumbly. Pat/gently roll the dough out until it's about 1/2 thick.
Using a biscuit cutter cut out biscuits, usually 8-10 depending on the size of your biscuit cutter.
Place on a baking sheet and bake for 10-12 minutes or until golden brown.
