This birthday cake for my daughter is yellow cake with dulce de leche filling and SMBC icing. This was my first time using SMBC and I found it very difficult to work with! It kept melting on me and got very bubbly. I would love tips on working with meringue buttercream; I like the taste of it better than ABC. Overall, I thought this cake wasn't too bad. The Hello Kitty on top is a store-bought marshmallow sucker and the decorations on the sides are homemade chocolate candies.