Panko-Crusted Portobello Mushroom Burger
- Peanut oil, for frying, enough to fill your skillet 1 to 11/2 inches deep
- 4 round pineapple slices (either fresh or canned), each justover a 1/4-inch thick
- Butter, for grilling
- 4 onion rolls, split, buttered and griddled
- 1 cup all-purpose flour
- 3 large eggs, beaten
- 2 cups panko breadcrumbs
- Kosher salt and freshly ground black pepper
- 4 portobello mushroom caps (about 1 pound), gentlycleaned and gills removed
- 1/2 cup Japanese mayonnaise (or regular if you can't findit)
- 4 teaspoons teriyaki sauce
- 1/2 small red onion, thinly sliced
- 4 to 8 leaves red leaf lettuce
Heat the peanut oil to 350 degrees F in a large cast-iron skillet.
Heat a grill pan over medium-high heat. Grill the pineapple slices to get nice grill marks, about 2 minutes per side. Butter and grill the buns as well.
Set up a breading station of flour, eggs and panko seasoned with salt and pepper, in 3 separate shallow dishes. Dredge each mushroom cap in the flour first, then the egg and finally the panko. Fry the breaded mushrooms until golden brown and cooked through, 4 to 5 minutes. Drain on a baking sheet lined with a cooling rack or paper towels.
Whisk together the mayonnaise and teriyaki sauce in a small bowl.
For the sandwich build: Spread some teriyaki mayo on the bottom and top halves of the buns. Top the bottom bun with a pineapple slice, a fried portobello mushroom cap, some onion slices and red lettuce leaf. Oh man!
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