Pan-Seared Okinawan Purple Sweet Potato Croquettes

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Golden pan-seared croquettes filled with creamy mashed Okinawan purple sweet potato, perfect for a savory snack or side dish. This Japanese-inspired recipe, ready in about 35 minutes, turns Okinawan purple sweet potato, unsalted butter, milk into a satisfying snack for between meals, packed lunches, or game-day spreads — minimal active time and easy to scale up for a crowd. Each serving lands at about 250 calories and feeds 4, so it fits into lunchboxes, road trips, or an afternoon-energy gap without derailing the day. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 15 min Serves 4 Japanese cuisine 250 cal/serving
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Ingredients

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Instructions

  1. Step 1: Place 400 g peeled and diced Okinawan purple sweet potato in a pot and cover with water. Bring to a boil over high heat, then reduce to medium and simmer for 15 minutes until tender when pierced with a fork. Drain well.
  2. Step 2: Mash the cooked sweet potato with 2 tbsp unsalted butter, 1/4 cup milk, 1/2 tsp salt, and 1/4 tsp black pepper until smooth and creamy. Let cool slightly.
  3. Step 3: Shape the mashed sweet potato mixture into 8 equal oval croquettes, about 2 inches long.
  4. Step 4: Prepare three bowls: one with 1/2 cup all-purpose flour, one with 1 beaten large egg, and one with 1 cup panko breadcrumbs.
  5. Step 5: Dredge each croquette first in flour, shaking off excess, then dip into the beaten egg, and finally coat thoroughly with panko breadcrumbs.
  6. Step 6: Heat 3 tbsp vegetable oil in a large non-stick skillet over medium heat. Fry the croquettes in batches for 3-4 minutes per side until golden brown and crispy.
  7. Step 7: Drain on paper towels and serve warm as a snack or side dish.

Frequently asked questions

How long does Pan-Seared Okinawan Purple Sweet Potato Croquettes take to make?

Total time is about 35 minutes (20 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Pan-Seared Okinawan Purple Sweet Potato Croquettes?

Store in an airtight container at room temperature for crisp items, or in the fridge for anything dairy- or produce-based, for up to 3–5 days. Re-crisp baked snacks in a 300°F oven for 5 minutes if they soften.

Can I substitute ingredients in Pan-Seared Okinawan Purple Sweet Potato Croquettes?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Pan-Seared Okinawan Purple Sweet Potato Croquettes for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Pan-Seared Okinawan Purple Sweet Potato Croquettes?

Japanese snacks like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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