Heat oven to 350 degrees. Grease 8" square baking pan (I use an old pie tin), then dust it with unsweetened cocoa powder (instead of flour).
Melt butter/margarine. Add cocoa and stir. Cool in refrigerator for a few moments. Then add sugars and egg and stir with a fork until well blended. Fold in dry ingredients, mixing thoroughly. Batter should be stiff, not at all soupy.
Scrape out of mixing bowl and spread evenly into greased, cocoa-dusted, baking pan. Bake 25-30 minutes or until fork, knife, or toothpick inserted into center comes out clean.
Remove from oven (turn off oven), cool, cut, and serve (preferably on lace doilies).
Recipe from Marie, CSC185 @ SCC, Fall 1999