I love cupcake Berko, and I was really thrilled when I was offered this book ... Unfortunately, I tested a few recipes, and these are all failures (not my fault I guess ^^). As said by others, the recipe for sponge cake is zero, the proportions are unlikely and the result is a kind of cake fluted type, but in worse ... Regarding the topping, I tested the cream cheese: again the proportions are not good, I found myself with a hyper liquid topping, impossible to do something nice ... This cream based on butter ditto. The mascarpone cream is a little better, but not perfect either ... I feel that revenues have been translated, or whatever, and suddenly the proportions are completely false! Moreover, the amounts are astronomical! It's probably good for only shop, but to make it home to his family ... it's better to just divide by two or even three! In summary, the book gives good ideas, but against it should not follow recipes! (A shame ...)