Ingredients and ingredient ratios for making homemade cakes using a rice cooker:
4 eggs, 100 grams of flour (add 10 grams of starch to it, which can reduce the gluten of the flour. Cake flour is better), milk, sugar, salt, and oil.
The ratio of ingredients for homemade cakes made with rice cookers is: eggs, sugar, and noodles in a ratio of 2:1:1. Be sure to beat the egg whites thoroughly. 
Before using a rice cooker to make homemade cakes, let’s emphasize a few keys to making soft and fluffy cakes:
First, make sure the utensils used to pack egg yolks and egg whites are clean. The utensils must be oil-free and water-free, and your hands need to be dry.
Second, make sure that the egg white liquid cannot be mixed with egg yolk liquid, otherwise the rice cooker cake will not rise. Beat the egg whites quickly and in a clockwise direction until the bowl is turned upside down and it does not slip. Make sure there is no egg white liquid at all.
Third, the beaten egg whites should be added to the cake batter in several batches. When mixing, turn it up and down to mix evenly.
Fourth, the rice cooker needs to be preheated for about 40 seconds, and then grease the inner wall of the rice cooker. After pouring the cake batter, it needs to be shaken to make the cake batter smooth. And use a towel to block the air outlet of the rice cooker.
The method of using a rice cooker to make a fluffy cake is as follows: 
from juqiao.com
1. Separate the yolks and whites of the eggs and put them into two large bowls respectively.There should be no egg yolk in the clear water. (Remember: the large bowl is clean, free of water and oil, and your hands are dry)
2. Stir the egg yolk clockwise until it turns light yellow, about one minute. Then add three spoons of low-gluten (or medium-gluten) flour, six spoons of milk, and two spoons of sugar, and stir gently clockwise (stirring too hard will produce gluten in the dough and affect the quality of the cake) until the dough is evenly mixed together. You can also add a small amount of baking soda and blended oil to make the cake softer. During the mixing process, many dough lumps will appear, which need to be flattened patiently. 
3. Add a little salt and a spoonful of sugar to the egg whites. Use a whisk or three chopsticks to stir clockwise until the egg whites turn into egg whites and become foamy. Make sure there is no egg liquid at all and the egg whites do not slip when you invert the bowl. 
4. Add the egg whites into the cake batter made of egg yolks several times, and be careful to stir it up and down like stir-frying. Remember: Don’t let the egg yolk paste form gluten, otherwise the cake will not be edible! Just mix everything evenly. 
5. Preheat the rice cooker for 40 seconds and evenly apply a layer of cooking oil in the pot. Pour the evenly mixed cake batter into the pan and shake twice.Shake out air bubbles and smoothen cake batter. Cover the pot and press the cooking button. After 2 minutes, it will automatically jump to the keep warm state. Wait for 20 minutes, then press the cooking button again. After waiting for 20 minutes, open the pot lid and the house will be filled with fragrance (Note: The air vent of the rice cooker should be blocked with a towel). 
There are many reasons why homemade cakes cannot rise in a rice cooker. Friends who like to make cakes, if you strictly follow the above steps to make cakes with a rice cooker, you will definitely be able to make a soft, delicious, clean and hygienic cake.
Extended reading:
1. A complete list of 3 ways to make skin-nourishing porridge
2. Detailed explanation of the steps of making French caramel milk stewed eggs
3. How to make delicious fruit salad
4. How to make fried poached eggs. How to make delicious fried eggs
5. Teach you how to make a creative fruit platter and a creative fruit platter with a Christmas tree
