Buttermilk Biscuits

Everyone loves these buscuits in our house. I have to double or triple the recipe every time.

1 1/2 cups all-purpose flour
1 1/2 tablespoons sugar
1 1/2 teaspoons baking powder
1/4 teaspoon salt
1/4 teaspoon baking soda
1/2 stick (1/4 cup) cold unsalted butter, cut into 1/2-inch cubes
3/4 cup well-shaken buttermilk (if you don't have buttermilk, mix 1 TBL white vinegar into 1 cup milk and let stand for 5 min.)

Put oven rack in middle position and preheat oven to 425°F. Sift together flour, sugar, baking powder, salt, and baking soda onto a sheet of wax paper, then sift again into a bowl. Blend in butter until mixture resembles coarse meal. Add buttermilk and stir with a fork until a dough just forms (dough will be moist).

Bake until pale golden, 12 to 15 minutes, then transfer to a rack to cool to room temperature.