Gluten Free Health Bar Cake

Heath Bar Cake
2 cups Gluten Free Flour   (I used Jules any GF flour mix will work)
2 cups Brown Sugar
½  cup plus 2 t. Margarine
1 t. Baking Soda
½ t. salt
Mix all the above ingredients together.  
Take out 1 cup for reserve-for topping.
Add to remaining:  1 egg
                               1 cup milk
                               1 t. vanilla
Pour into greased 9x13 pan.  
Add 6 chopped Heath Bars (full size) to 1 cup of reserved topping mixture, mix well and distribute evenly over top of mixture in pan. 
Bake @ 350* for 20-30 min. 
****I used about 20 or so miniature heath bars because that is all I could find at the store.

My son brought this to a school party and everyone loved it!  I don't think they realized (or cared) it was gluten free.  
Enjoy!