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| eggs: 4 |
| unsweetened cocoa powder (sifted): 1/4 cup |
| granulated sugar: 1 cup |
| ground cinnamon: 1/2 tsp |
| salt: 1/4 tsp |
| baking powder: 1 tsp |
| unsalted butter: 1 cup |
| dry roasted hazelnuts: 2 oz |
| all-purpose flour (unsifted): 2 cups |
Credit: allrecipes.com