Preheat oven to 400 degrees
Mix together flour, salt, sugar and baking powder
Cut up 6 tbsp of butter into pea sized pieces
Remove 1 tbsp of milk out of the 3/4 cup and set aside
Add the remaining milk to the mixture and stir very gently with a spatula
On a floured surface, gently knead the dough until it's no longer super sticky. Pat it out gently until it's 1 inch thick. Fold the dough over itself and pat out to 1 inch thick again. Repeat twice and fold 3 times. Be VERY GENTLE. Resist the urge to smoosh it!
Pat the dough 3/4 inches thick and cut using the rim of a cup or biscuit cutter, then place on a greased pan
Before popping them into the oven, top the biscuits with the 1 tbsp of milk that you set aside earlier. Cook for about 15-17 minutes and enjoy!