Amish Shoo Fly Cupcakes
Sift flour and sugar together. Cut cold butter into mixture with a fork until mixture is fine and crumbly. Reserved 1 cup of crumb mixture for topping.
Dissolve cream of tartar and baking soda in cold water. Mix water and molasses into flour crumb mixture. Stir until blended. Fill each muffin cup about 2/3 full and sprinkle with reserved topping.