4 c. flour
2 c. sugar
1 c. butter, softened
Pinch of salt
1 tbsp. cinnamon
2 eggs, beaten
1 c. buttermilk
1 tsp. baking soda
1 tsp. vanilla

Preheat oven to 350 degrees. Grease and flour a 9x13 inch pan.

Combine flour, sugar, butter, salt, and cinnamon. Mix until crumbly. Remove 2 cups of this mixture and set aside.

To the remaining crumbs, add the eggs, buttermilk with baking soda dissolved in it, and vanilla. Spread into prepared pan and sprinkle reserved crumbs on top. Bake for 1 hour.