1/2 c. Butter (softened) 1 c. Sugar 4 Eggs (beaten) 2 c. Flour 2 tsp. Baking Powder 1/4 tsp. Salt 2 tsp. Cinnamon 1 tsp. Vanilla
Beat eggs, adding vanilla slowly in a small bowl. Mix sugar and butter in a large separate bowl. Combine remainder of dry ingredients in a separate bowl. Then, mix the dry ingredients with the sugar/butter mixture (do not over mix). Next, combine all, and mix until incorporated (do not over mix).
Shape into a log, the diameter of a quarter. Chill 30 minutes. Slice 1/2 inch sections, place on sheet pan and depress slightly with your thumb. Bake 10 minutes at 400 degrees.