Add the egg and vanilla extract and beat to combine.

把鸡蛋和香草粉加进去，打匀。

youdao

Beat the eggs with sugar, mix with flour, cocoa powder, baking powder and vanilla extract.

用打蛋器打鸡蛋和糖，然后混合面粉，可可粉，发酵粉和香草精。

youdao

Beat the eggs with the milk and vanilla extract. Add the mixture to the flour along with the melted butter.

将鸡蛋和牛奶还有香草精混合，加入混合好的粉类和溶化的黄油。

youdao

Add the vanilla extract and keep beating the whites at medium speed until they reach room temperature, about 5 minutes.

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