My mom & sisters & I got together to decorate sugar cookies last week; we used a recipe that my mom had gotten from her friend and it's just fantastic! Makes a nice, tender dough and doesn't need chilling before rolling out. One batch will make at least 2 dozen cookies.
1 c sugar
1/2 c sour cream
1 tsp vanilla
1/2 c butter (softened)
3 1/4 c flour (plus more on hand for rolling out dough)
1 tsp salt
1 tsp baking soda
1 tsp cream of tartar
Preheat oven to 350. Cream together first five ingredients. Sift flour with salt, soda, & cream of tartar in a separate bowl; then add gradually to the wet ingredients. Mix thoroughly.
Flour a flat surface and flour your rolling pin; have extra flour on hand. Using 1/4 to 1/2 the dough at a time, knead a few times with flour until it is less sticky and easier to work with. Then roll it, with plenty of flour, out to about 1/4" thickness and cut with cookie cutters.
Bake at 350 for 5-10 minutes. I found that my cookies were done at about 8 minutes; your oven may be different. Cookies will be soft and tender; delicious! But even better with frosting :)