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| granulated sugar: 2 1/4 cups |
| unsweetened cocoa powder (sifted): 2/3 cup |
| unsweetened baking chocolate squares: 2 oz |
| all-purpose flour (unsifted): 1 1/4 cups |
| baking powder: 1 tsp |
| salt: 1 tsp |
| unsalted butter: 3/4 cup |
| eggs: 4 |
| m&m's semisweet chocolate mini baking bits: 1/2 cup |
| miniature marshmallows: 1/2 cup (optional) |
Credit: Food.com