Mix like piecrust the following:
2 cups flour
2 cups oatmeal (quick cooking)
2 cups Total cereal, crushed. Use blender and measure before crushing!
3/4 cup sugar
1/2 tsp salt
2 sticks butter
Mix 1 tsp soda in 3/4 cup warm water and add to above mixture
Roll small amount on floured surface, (not real thin) transfer to cookie sheet and cut to desired size ( I usually do about 3 by 4 inches) Bake 350 for about 8-9 minutes. WATCH CLOSELY.
This is not a thin flatbread that you traditionally think of. It is more like a graham cracker thickness. Also it is sweeter than traditional flatbread and is delicious without butter.