Grease WELL a 9 x 13 in. pan, preheat oven to 350 degree F.
Mix dry ingredients.
3 cups flour
2 tsp. baking soda
1 tsp. salt
2 cups sugar
1/2 cup cocoa
Add in:
2 Tbsp. vinegar
2 tsp. vanilla
2/3 cup oil
2 cups of water or milk (or reconstituted milk)
Pour into greased pan.
Bake for 40 minutes or until done.
printable recipe
At this blog I found lots of different uses for powdered milk, besides just reconstituting it.
Using powdered milk from Hillbilly Housewife