Using your fingers, peel away most of the loose outer layers around the head of garlic.
Trim about 1/8 inch off the top of the head of garlic.
Drizzle about 1-2 tsp. of olive oil over the exposed surface of the garlic and let the oil sink into the cloves.
Wrap the garlic in aluminum foil and roast in the oven for 40 minutes (depends on the size of your garlic).
The garlic is done when a center clove is completely soft when pierced with a paring knife.
You can leave it in the oven a little longer for a more caramelized flavor (See Note 1).
Meanwhile, combine 1 cup panko and 1 Tbsp. olive oil in a frying pan and toast over medium heat until golden brown.
Try not to break the panko pieces with your spatula (I know it's hard) and try shaking the frying pan instead of over mixing.
When panko is nice golden brown, transfer to a bowl (or tray) to let cool.
Butterfly the chicken breast (See Note 2).
With the edge of a knife parallel to the cutting board, cut the length of the side of the breast.
Carefully slice the breast in half widthwise almost to the other edge.
Keep the edge intact and open the breast along the fold.
Season the chicken with salt and freshly ground black pepper.
Crack the egg into a medium bowl and add 1 Tbsp. water.
Whisk well to combine.
Put 1/2 cup flour in a bowl (or large tray).
Dredge the chicken in flour and shake off excess flour off, and then dip in the egg mixture.
Then dredge the chicken in toasted panko and place it in a rimmed baking sheet lined with parchment paper.
If your garlic is not done yet by this time, move it to a higher rack or place it in an open space inside the oven.
Bake the chicken at 400F (200C) for 30 minutes, or until it's done.
When the garlic is done, let it cool slightly and press on the bottom of a clove to push it out of its paper.
You can use a knife to take it out as well.
Put all the roasted cloves in a small bowl and mash with a fork.
Add 1-2 Tbsp. of Tonkatsu Sauce and 1-2 Tbsp. Japanese mayonnaise and mix all together.
Slice the cucumber with a peeler and cut the tomato into thin slices.
Toast the sandwich bread (optional) and spread the butter.
Put the lettuce and the chicken katsu on top.
Spread generous amount of Garlic Tonkatsu Sauce on the chicken.
Put the cucumber, tomato slices and another toast on top.
Cut the sandwich in half and serve immediately.
Crispy Chicken Sandwich: A Taste of Japan
As a busy working mom, I'm always looking for quick and easy recipes that my family will love. This Crispy Chicken Sandwich is a lifesaver! It's so flavorful and satisfying, yet it only takes about 30 minutes to make.
The key to this sandwich is the Garlic Tonkatsu Sauce. It's a sweet and savory sauce that adds tons of flavor to the chicken. I also love that this recipe uses panko breadcrumbs instead of regular breadcrumbs. Panko breadcrumbs are larger and flakier, which gives the chicken a perfectly crispy coating.
I always serve this sandwich with a side of cucumber and tomato slices, and some toasted bread. It's the perfect meal for a quick and easy weeknight dinner.