2 sentences

1. 把蛋黄和白糖搅和均匀。

   bǎ dàn​huáng hé bái​táng jiǎo​huo jūn​yún.

   Mix the egg yolks and sugar thoroughly.

   Source: Dong Chinese Dictionary

2. 做蛋糕时，通常需要将蛋黄和蛋白分离。

   zuò dàn​gāo shí, tōng​cháng xū​yào jiāng dàn​huáng hé dàn​bái fēn​lí.

   When making a cake, you usually need to separate the egg yolks from the whites.

   Source: Dong Chinese Dictionary