Best Sugar Cookies

My secret Recipe for best sugar cookies ever, my mom say in her whole life not just cause I'm her daughter, 

What you'll need to make it is:
1c. of butter
1 1/2 c. white sugar/ granulated
3 eggs
1 tsp. vanilla
3 1/2 c. flour
2 tsp. cream of tarter
1 tsp. baking soda
1/2 tsp. salt

step1-Preheat oven to 400 degrees

step2-Mix butter and sugar. Add eggs one by one/ mix one egg in then another after mixed, then add vanilla

step3- Mix in a separate bowl flour cream of tarter, baking soda, salt. Sift

step4-Mix together sugar butter mixture with the dry ingriedients. Mix constantly.

step5-Put in oven. Let cook to 8-10 minutes.

step6-Let cool, then enjoy