INGREDIENTS
1/2 cup
all-purpose flour
1/4 cup
cornstarch
2 tbsp
dry potato flakes
1/8 tsp
cayenne pepper, or to taste
1 cup
chilled club soda
2 cups
panko bread crumbs, or as needed
2 cups
vegetable oil for frying
2
large onions, cut into 1/4-inch thick slices and separated into rings
fine salt