I used croquettes from the left over from the day before, but you can use croquettes from a prepared-food store, a butcher, or any kind you like to make this croquette sandwich.
We often have bread for breakfast on our days off so I've tried making a lot of variations, but croquette sandwiches are a favorite. In our family, we've been making these with croquettes bought at a prepared-food store for a long time.
In step 1, if you toast the bread and warm the croquettes together in the toaster oven, it's convenient.Use your favorite croquettes. Homemade, from a prepared food store, from the butcher, frozen ones, and so on. If you use hamburger buns, it's a croquette burger.
Enjoy Japanese food around the world.