Nana's Soft Sugar Cookies

This is a recipe that my mom made since I was a kid and one that Laura and I often make.

Add about one tbsp vinegar to 1 cup milk to sour the milk and make it thick. Let sit for several minutes. Stir before using.

Cream 3/4 cup shortening with a mixer.
Add 2 cups sugar.
Add 3 eggs.
Add 1 tsp vanilla.

Sift 4 cups flour
with 1 tsp baking soda
and 1 heaping tsp baking powder.

Alternate adding the flour mixture and the milk into the sugar mixture until completely blended.
Drop by spoonful onto greased cookie sheet. Sprinkle with sugar.

Bake in 375 degree oven until cookies appear baked through.