Brownie Mix and you could expeirment with this too. I have not tried it yet.
Never buying a box again. So simple, so easy!!! Brownie Mix $0.30 /mix. 1 Cup Sugar, 1/2 Cup Flour, 1/3 Cup Cocoa, 1/4 tsp Salt, 1/4 tsp Baking Powder. Add: 2 Eggs, 1/2 Cup Vegetable Oil, 1 teaspoon Vanilla. Bake @ 350 degrees for 20-25 minutes.
I like to share thrifty ideas when I find them. Let me know how the brownies turn out for you!