1Beaten egg combined with 1 or 2 tablespoons cold water for dipping
All-purpose flour as needed
Panko (Japanese dried breadcrumbs) as needed*
Vegetable oil for deep-frying as needed
Garnish:
Watercress or parsley sprigs
Tonkatsu sauce
Instructions
Mix all croquette ingredients lightly together (a few lumps are okay). Taste and adjust seasonings if necessary.
Form the croquettes into desired shapes: typical Japanese shapes are either short thick cylinders or small thick patties. Lightly pat all-over with flour (dusting off the excess), dip into egg mixture, and roll in the breadcrumbs, patting off any excess.
Quickly deep fry the croquettes in the oil until golden brown, turning once. Don't crowd the pan when doing. Drain briefly on paper towels and serve on a heated platter, garnishing the plate either with watercress or parsley sprigs. Pass Tonkatsu sauce separately. Serve piping hot.
Notes
Some popular variations include:
Add in cooked ground beef (only use a little), carrot and onion to make Ground Beef & Potato Croquettes. You could also add in minced sauteed mushrooms if you want more vegetables. Lotus root or gobo (burdock root) could also be a variation (minced and boiled before mixing into potato mixture.)
Kani (Crab) Cream Croquette: Uses a white cream sauce, and add in canned or fresh crab as a rich and yummy alternative.
You can add in bacon and cheese if you like. Just adding grated cheese to potatoes would also be another tasty option.
Try sweet potato instead of potatoes, or do a combo of both.
Season with curry powder to make Curry Croquette for a different flavor.
To make a complete meal of Korokke, serve with miso soup and rice, garnishing the plate with sliced tomatoes and julienned cabbage (sengiri).
*You can also make fresh breadcrumbs if desired instead of using panko.