Mrs. O'Leary's Sugar Cookies

I got this recipe from my niece, Susanne who got it from her mom, my sister, Rachel. Susanne says: "These are seriously the best Sugar Cookies in the whole wide world!!!" I have to agree.

2 Cups Butter
1 Cup Powdered Sugar
1 Cup Granulated Sugar
2 tsp Vanilla Extract
2 Eggs
4 1/2 Cup Flour
1 tsp Cream of Tartar
1 tsp Baking Soda

Preheat oven to 350 degrees.
Cream softened butter with all wet ingredients including shgars. In a separate bowl, mix the dry ingredients together (flour, baking soda, cream of tartar) then slowly add dry into the wet, mixing as you go. Take dough and roll out to no more than 1/4 of an inch with flour underneath so dough doesn't stick to the counter, then cut out. Bake for 12-15 minutes or until slightly golden. Take out, let cool.