Mary's Cinnamon Coffee Cake

3 c FLOUR

1 c BROWN SUGAR

1 c SUGAR

1 tb CINNAMON

1 c BUTTER SOFTENED

1 t SALT

1 t BAKING SODA

1 t VANILLA

2 ea EGGS

1 c BUTTER MILK

MIX FLOUR, SUGARS, BUTTER AND CINNAMON TILL CRUMBLY. RESERVE 3/4 CUP FOR TOPPING. MIX REMAINING INGREDIENTS INTO FLOUR MIX AND STIR TO WET ALL INGREDIENTS. DO NOT OVER MIX!!! POUR INTO GREASED FLOURED TUBE PAN. SPRINKLE WITH TOPPING. BAKE AT 350 DEG. F. FOR 45-50 MINUTES OR UNTIL WOOD PICK COMES OUT CLEAN. COOL BEFORE REMOVING FROM PAN.