Sift together flour, cocoa, sugar, baking powder, baking soda and salt in another bowl.

面粉，可可粉，砂糖，小苏打，烤粉及食盐混合过筛到另一个盆里。

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Sift together the plain flour, cornstarch and cocoa powder together into a separate bowl. Add half of the flour mixture to the butter mixture and beat on low speed until just combined.

筛面粉、米粉和可可粉到一个碗里，加一半的面粉混合物到黄油混合物，低速拍打完全混合。

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For the chocolate cookies, sift together the flour, cocoa powder, baking powder, bicarbonate of soda and salt. Set aside.

制作巧克力饼时，把面粉、可可粉、烘焙粉和小苏打粉放在一起筛过，备用。

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Sift together flour and next three ingredients (through red pepper).

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