Boil 4 1/2 cups water, 2 1/2 cups sugar, with 4 1/2 heaping teaspoons cream of tartar. Boil together for one minute. Then add 54 Ritz crackers and boil 2 minutes. DO NOT STIR. Set aside to cool.

CRUST:

Sift together 2 1/2 cups flour and 1/2 teaspoon salt. Cut in 3/4 cup shortening, add 1 beaten egg and 1/4 cup milk to flour mixture. Divide dough in half. Roll one half of dough on lightly floured board. Place rolled out dough in a 11x15 inch jelly roll pan (greased and floured), press dough in along sides and bottom of pan. Pour in filling. Add dots of butter and cinnamon on top of filling. Roll out second half of dough and cover filling with crust. Bake 30-40 minutes in a 400 degree oven.

POWDERED SUGAR GLAZE:

2 tbsp. warm milk
3/4 c. powdered sugar
1/4 tsp. vanilla

Mix together and pour over hot crust.