Preheat oven to 450 degrees. Sift* together Domata Flour, baking powder, salt, cream of tartar and sugar into medium to large mixing bowl. Cut in butter/margarine (I use a grater with the butter--it makes it so easy--just be sure to cut in after grating in half, then cut in again after finishing) to look somewhat lumpy --doesn't not need to be cornmeal consistency. Pour in milk and stir gently to incorporate until dough follows fork around the bowl. Flour your hands and knead gently in the bowl, no more than 3-4 times. Pull off a biscuit sized amount and gently shape.
** Place on ungreased baking sheet or seasoned baking stone. Bake for 14 minutes. Check for doneness. GF products usually have to bake a little longer.