Snickerdoodle Bars

These are really, really good.
Much easier than rolling and baking the cookies too.

Adapted from Tasty Kitchen

Makes a 9x13 pan

Dough
1 c unsalted butter
1 3/4 c sugar
2 tsp cream of tartar
1 tsp baking powder
1/2 tsp salt
3 eggs
1 tsp vanilla
2 1/2 c flour

Filling
1 1/2 T cinnamon
2 T sugar

Glaze
1 1/4 c powdered sugar
2 T milk
1 tsp vanilla

Cream butter with sugar and other ingredients through salt.  Beat in eggs one at a time and vanilla.  Stir in flour.  Spread half of dough in a greased 9x13 pan.  Mix sugar and cinnamon for filling and spread on top.  Drop remaining dough by spoonfuls on top.  Bake 30-35 minutes at 350F.  Bang pan when you take out to get rid of air.  Mix glaze ingredients and drizzle on top.