How to make
Mix the flour, sugar, baking powder and cocoa and beat the mixture well. Add the egg, milk and oil and beat the mixture well to avoid lumps.
The dough is distributed in two fireproof cups with a volume of 5 fl oz (150 milliliters) or in a bowl with a volume of 10 fl oz (300 milliliters).
Place the bowl with the dough in the microwave and bake it at maximum power for about 4 minutes. After opening up the microwave, the cake should not deflate.
If this happens, next time bake the cake for about a minute longer.