I though I'd give this recipe a try before gift giving. I modified slightly: increasing butter to 1 cup, adding a teaspoon vanilla, and using a vegetable spray instead of greasing and flouring the pan. I ended up with moist, tasty brownies that came out of the pan easily. Needless to say, several jars of this mix will leave my kitchen as gifts. It is an excellent recipe!
Homemade Brownie Mix
1 cup (200g) granulated sugar
1/3 cup (40g) unsweetened cocoa powder sifted
1/2 cup (64g) all-purpose flour
1/4 tsp. salt
1/4 tsp. baking powder
1/2 cup (113g) butter melted then cooled
2 eggs room temperature
1 tsp. McCormick vanilla
Sift together all dry ingredients. Place into a jar or airtight container.