Soft Sugar Cookies

I put this one in your "Pictures of Me" cookbooks a long time ago, but thought I'd post it again.

Mix and set aside:
1 c sour cream
1 t apple cider vinegar

Cream:
1 3/4 c sugar
1 1/2 t baking soda
few drops lemon juice
3/4 c butter
1/2 t salt
2 large eggs
1 1/2 t vanilla

Add:
sour cream mixture
5 1/2-6 c flour

Finally:
Roll out to 1/4" to 1/2" thickness (I like them thick)
Bake 10-13 min at 375 degrees.

Frost with "Cream Cheese Frosting"