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| salted butter: 2 1/4 cups |
| all-purpose flour (unsifted): 2 cups |
| caster sugar (superfine): 4 cups |
| eggs: 10 |
| unsweetened cocoa powder (sifted): 1 cup |
| walnuts (chopped): 3 1/4 cups |
| baking powder: 1/2 tsp |
| salt: 1/2 tsp |
| pure vanilla extract: 2 tsp |
Credit: Food.com