http://www.cooks.com/rec/view/0,164,148162-255200,00.html

For a plain baking powder biscuit that could be substituted for a
shortcake biscuit try the following:

2 c. flour
2 tbsp. sugar
1 tbsp. baking powder
1/4 tsp. salt
2/3 c. skim milk
1/3 c. safflower, canola, sunflower or corn oil

Heat oven to 425 degrees. Combine dry ingredients. Add milk and oil at
once. Stir with fork just enough to hold dough together.

Pat dough about 1/2 inch thick on lightly floured surface. Cut out
biscuits with floured 2 1/2 inch cutter. Place on ungreased baking
sheet. Bake 10 to 12 minutes or until golden brown. Makes 9 biscuits.