I had a few button mushrooms to use up and we haven’t had any of these for a long time.  They are batter dipped and then dredged in panko.  The batter is flour and water with a beaten egg and a teaspoon of baking powder, seasoned with ground red pepper and salt.

The dip is mostly ketchup with a squirt of bbq sauce and a tablespoon or so of sweet soy sauce.  An option would be to add a dollop of chili garlic paste.