Don't get these cakes confused with the kind of rice cakes you buy from the grocery store, made from puffed up rice kernels. These delightful treats are made from cooked rice that's ground to a fine powder in lieu of buying rice flour and also regular flour, plus eggs, sugar, and vanilla sugar. Once the batter is divided into the muffin tin cups, it's sprinkled with more sugar to create a crunchy topping. They're perfect for an afterschool snack.