Add yolk and sugar into the dry ingredients to form a dough, chill until firm.

加入蛋黄、糖搓成面团，放冰箱中至硬。

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Cream the butter and sugar until light and fluffy and beat in the egg yolk.

黄油和糖混合后打发至松发绒毛状，然后打入蛋黄。

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Place the egg yolk and sugar in a bowl and whisk until creamy.

把烧开的牛奶混合液倒入蛋黄和细白砂糖混合物中，不断搅动。

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Place the egg yolk and sugar in a bowl and whisk until creamy.

把烧开的牛奶混合液倒入蛋黄和细白砂糖混合物中，不断搅动。

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