cream

Mushi Pan variations for dough and topping?

I'm in love with Mushi-Pan right now and I also tried my own one some days ago! I also made some Matcha-butter-cream and Sesame-peanut-cream as a topping. It was delicious, but I want to try more flavors.

Do you have any tips for me how to variate the Mushi-Pan-dough a little bit?

What is your favorite-Mushi-Pan ingredient? (for example, chocolate, fruits or any other cream as a topping...?)

Thx for all your help! =D