Sand Tartshttps://www.penzeys.com/shop/recipes/sand-tarts/Danielle writes, “This was Grandpa Hoffman’s favorite Christmas cookie. Mom would make him a huge tin of them for Christmas.”2 Cups sugar3/4 Cup butter (1 1/2 sticks)3 egg yolks3 1/2 Cups flour1 tsp. baking soda2 TB. buttermilk1 egg yolk1 tsp. water1 TB. CINNAMON SUGAR