Mom's Crispy Japanese Potato Croquettes (Print Version)

# Ingredients:

→ Potato and Meat Mixture

01 - Russet potatoes, peeled and quartered (2 pounds, about 4 medium)
02 - Large onion, finely minced (9.6 oz, 272g)
03 - Neutral cooking oil (1 tablespoon)
04 - Ground beef, 85% lean (1 pound)
05 - Diamond Crystal kosher salt, divided (1 teaspoon total)
06 - Freshly ground black pepper, divided (½ teaspoon total)
07 - Unsalted butter (1 tablespoon)

→ Breading

08 - All-purpose flour (½ cup)
09 - Panko Japanese breadcrumbs (2 cups)
10 - Large eggs (3, 50g each without shell)

→ For Deep Frying

11 - Neutral oil for frying (4 cups, or enough for 2-inch depth)

→ For Serving

12 - Tonkatsu sauce

# Instructions:

01 - Peel and quarter the russet potatoes into even pieces. Cover with water in a large pot and bring to a gentle boil. Cook for 15-20 minutes until easily pierced with a skewer.
02 - Finely mince the onion using the mijingiri technique. Sauté in oil until tender and slightly charred, about 12-15 minutes. Add ground beef and cook until no longer pink.
03 - Drain cooked potatoes completely and return to low heat to evaporate remaining moisture. Mash while hot, leaving some chunks for texture. Mix in butter, salt, and pepper.
04 - Drain excess liquid from the meat mixture, then combine with mashed potatoes until well mixed.
05 - Shape the warm mixture into 3-inch oval patties, avoiding air pockets. Refrigerate for 15-30 minutes to prevent exploding during frying.
06 - Dredge each chilled patty in flour, dip in beaten egg, then coat thoroughly with panko breadcrumbs.
07 - Heat oil to 340-350°F (170-180°C). Fry croquettes 2-3 at a time until golden brown, about 2-3 minutes. Drain on wire rack.

# Notes:

01 - Use russet potatoes for the best fluffy texture
02 - Don't skip the chilling step - it prevents the croquettes from exploding
03 - The inside is already cooked, so just fry until golden brown