6
votes
2answers
672 views

Why did a receipe call for pouring boiling butter in egg-whites?

I made a sponge cake using a receipe from an old cookbook and at one point it told me to melt and boil butter and pour the boiling butter into beaten egg-whites, let sit for a minute and then mix ...
3
votes
1answer
786 views

What does melted butter do in a swiss roll recipe?

I'm planning on making a Swiss roll. This is a sponge cake, baked in your baking sheet (so it's thin) and you roll it up, mostly with a filling. While looking for a recipe, some recipes say to use ...