Sugar Cookies (Best Ever!)

We've been making this recipe for as long as I can remember!

1 c. butter
1 c. sugar
1 egg
1 tsp. vanilla
3 Tb. cream or milk
3 c. flour
1/2 tsp. salt
1 1/2 tsp. baking powder

Cream butter and sugar. Add egg, cream and vanilla and mix until blended. Add dry ingredients. Divide into 3 or 4 rounds and roll out. Cut with seasonal cookie cutters. Bake at 400 degrees for 5-8 min. until barely golden. Ice with your favorite frosting and top with sprinkles. Make 5-6 dozen.