Place the egg whites and lemon juice or white vinegar in a large bowl, whisking them until foamy and then keep whisking, adding the remaining sugar in 3 batches until the mixture stands in stiff peaks.
Place the egg whites and lemon juice or white vinegar in a large bowl, whisking them until foamy and then keep whisking, adding the remaining sugar in 3 batches until the mixture stands in stiff peaks.
把蛋白和柠檬汁或是白醋打至起粗泡，剩下的砂糖糖分3次加入，打至中性发泡呈硬挺状。