Pan-Fried Okinawan Purple Sweet Potato Mochi Cakes

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Chewy mochi cakes made from vibrant Okinawan purple sweet potatoes, pan-fried to golden perfection and lightly sweetened for a delightful snack. This japanese-inspired snacks (vegetarian) ready in about 35 minutes layers mochiko (sweet rice flour), sugar, water into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 180 calories and feeds 5, so it slots into a weekend bake or a special-occasion dessert tray. 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 5 Japanese cuisine 180 cal/serving
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Ingredients

Instructions

  1. Step 1: Peel and dice 2 medium Okinawan purple sweet potatoes (about 12 oz), then steam or boil until very tender, about 15 minutes. Mash until smooth.
  2. Step 2: In a mixing bowl, combine the mashed sweet potatoes, 1 cup mochiko sweet rice flour, 2 tbsp sugar, and 1/2 cup water. Stir until a sticky dough forms.
  3. Step 3: Divide the dough into 10 equal portions and shape each into a flat round patty about 3 inches in diameter.
  4. Step 4: Heat 3 tbsp vegetable oil in a nonstick skillet over medium heat. Add the patties and pan-fry for 4-5 minutes per side until golden brown and slightly crispy on the outside.
  5. Step 5: Remove from skillet and sprinkle each cake with 2 tbsp toasted sesame seeds while still warm for a nutty aroma and texture.

Frequently asked questions

How long does Pan-Fried Okinawan Purple Sweet Potato Mochi Cakes take to make?

Total time is about 35 minutes (20 min prep + 15 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Pan-Fried Okinawan Purple Sweet Potato Mochi Cakes?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Pan-Fried Okinawan Purple Sweet Potato Mochi Cakes?

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-Fried Okinawan Purple Sweet Potato Mochi Cakes for a different number of people?

The recipe is written for 5 servings. Multiply each ingredient by (your serving target / 5). 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.

Is Pan-Fried Okinawan Purple Sweet Potato Mochi Cakes vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

Equipment for this recipe

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