Ruth's Diners Mile High Biscuits

Preheat oven to 425 degrees. Combine flour, salt, sugar, baking powder and butter until crumbly. Mix in buttermilk, egg and just enough water to make a workable dough. Mix the dough until it is just barely combined (don't over mix). Roll the dough onto a floured cutting board about 1 inch thick. Cut with a 2 inch biscuit cutter, or a 2 inch round cup. Place on a greased baking sheet (touching each other) and bake 12-15 minutes or until golden brown. Makes about 12-15 biscuits, depending how thick you make them.Tips to making awesome biscuits:*ONLY hand mix your dough. Don't mix in a Bosch or with a hand mixer. The dough will be too tough and the dough will become dry if you use a mixer. You don't want to over mix this recipe. The best way to mix this dough is with a pastry cutter or using two knives and cutting the dough back and forth. This method takes a little longer but will ensure the perfect biscuit. You want pieces of butter left in your biscuit, that is what keeps the dough light and flaky.*Next tip is to keep your biscuit dough fairly thick. You want a tall and thick biscuit more than you do a thin and hard biscuit. Keeping the dough thick will ensure a chewy and soft biscuit. I keep my dough about 1 to 1½ inches thick (cooking times may vary depending how thick you make them).