3 T cocoa + 1 T butter or oil = 1 oz unsweetened baking chocolate
1 T cocoa + 2 t butter + 3 1/2 t sugar = 1 oz semi-sweet baking chocolate
3 T cocoa + 1 T butter or oil = 1 oz unsweetened baking chocolate
1 T cocoa + 2 t butter + 3 1/2 t sugar = 1 oz semi-sweet baking chocolate