It has been a while since I last did a how to post. Shame on me. For that reason I wanted to give you twelve tips today to produce the fluffiest, lightest and best sponge batter. I love cakes with sponge batter, I especially love sponge rolls. If you would like to check out my recipes, please scroll down. I love sponge rolls, because they are fast to prepare, look all fancy and are perfect if you have company coming over. Sponge is also a nice and unassuming companion for any layer cake you want to create. It does not take over flavorwise, it holds back and nicely complements whichever buttercream or frosting you have in mind to fill it with. But sponge batter can be a bit hard to prepare. If you are not careful, it can get dry and it may not rise as much as you had hoped while baking. For that reason I have twelve helpful tips for you how your sponge batter is going to turn out perfect.
#1 Your eggs need to have room temperature
Eggs are what makes a sponge cake fluffy and light, so be sure to use the best eggs you can find and have them at room temperature. Why? Because they will be much easier to beat and will take less time. So be sure to use them at room temperature. If you are anything like me, you will most likely forget to take them out on time. So here is a little trick, put them in a mug with warm water while you take care of step two and you will be good to go.
Beating the eggs is one of the most important steps for fluffy sponge batter. This is because you are beating in air into the eggs so that they can lift the batter while it is baking. So if you don’t want your beaten eggs to deflate while you are rushing around finding utensils and measuring all remaining ingredients, prepare and measure out everything beforehand. Believe me, your batter will come together much better and you will be less stressed out when you start beating the eggs.
#3 Beat egg yolks and egg whites separately
There are different ways of creating fluffy sponge batter. You can either beat the eggs as a whole or you can do it separately. I seem to always get better results beating the egg parts separately, so this is why I recommend you doing it, too. I didn’t own a KitchenAid for many years, so I had to use a handheld mixer and believe me, if you want to beat the whole eggs, you will need to beat them for at least ten minutes or longer. Not so much fun with a handheld mixer, is it? Also, if you beat your egg yolks and egg whites separately, the total amount you need to beat is still much lower, so I still do it that why. And here is another tip, if you use a handheld mixer, start with the egg whites, you can then just continue beating the egg yolks without washing anything.
#4 Beat your egg whites in a fatfree environment and don’t beat them for too long
You need to be absolutely sure that your bowl and mixer are completely fatfree before you start beating the egg whites. If there is a little bit of egg white in your egg yolk, that’s no problem, but if you have egg yolk in your egg white, it may not get stiff. To help stabilize your egg white, I always recommend a pinch of salt or a teaspoon of vinegar or lemon juice. Here in Germany we don’t have cream of tartar, so this is our way to stabilize it. I usually add the salt when the egg white is foaming and changes color, becomin white, which usually happens after a minute or so. Originally I thought I had to beat the egg white until stiff peaks form, but I learned recently that that was a little over the top, you only need to beat it until soft peaks form (see picture below). This is another reason for me why I prefer beating egg whites and egg yolks seperately, it doesn’t take that long.