Mom's Harumaki (Japanese Spring Rolls)

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Mom's Harumaki (Japanese Spring Rolls)

A crispy, savory Japanese family favorite packed with sliced pork, shiitake mushrooms, fresh bean sprouts, and crunchy bamboo shoots. Unlike traditional Chinese spring rolls, this comforting Japanese version skips the garlic for a subtle, deeply savory profile and features a thick, decadent gravy filling wrapped in a perfectly crispy exterior.

Prep Time30

Cook Time25

Total Time55

Course: Appetizer, Side Dish

Cuisine: Chinese, Japanese, Japanese fusion

Keyword: Crispy Appetizer, Harumaki, Japanese Spring Rolls, Pork Spring Rolls

Servings: people

Calories: 237kcal

Ingredients

The Fillings

1/4 lb Pork thinly sliced (approx. 150g)
2 tsp Sake
2 tsp Potato starch
1 pinch Salt and pepper
1/3 lb Boiled bamboo shoots cut into thin strips (approx. 150g)
3 pieces Shiitake mushrooms thinly sliced
1/3 lb Bean sprouts approx. 150g

The Seasoning Sauce

3 tbsp Soy sauce
1 tbsp Sake
1 tsp Chicken bouillon powder
1/3 cup Water 80 ml
1 tbsp Sesame oil
1 tsp Sugar
1 pinch Salt and pepper to taste

Thickeners & Assembly

1 1/2 tbsp Potato starch
2 tbsp Water for the slurry
10 pieces Spring roll wrappers thin style preferred
2 tbsp All-purpose flour mixed with a splash of water to form a "glue" paste
3 cups Canola oil for deep frying

Instructions

Marinate the Meat: Cut the pork slices into 1-inch pieces and place them into a small bowl. Pour in the sake, potato starch, salt, and pepper, then massage the mixture into the meat. Set aside.
Prep the Veggies: Thinly slice the shiitake mushrooms. Slice the boiled bamboo shoots into long, thin matchstick strips.
Whisk the Sauce: In another small bowl, combine all the seasoning sauce ingredients (soy sauce, sake, chicken powder, water, sesame oil, sugar, salt, and pepper). Stir well and set aside.
Sauté the Filling: Heat a splash of oil in a medium frying pan over medium-high heat. Cook the marinated pork and vegetables until the meat is fully cooked and opaque.
Thicken the Sauce: Pour the whisked seasoning sauce into the frying pan. In a tiny cup, mix the 1 ½ tablespoons of potato starch with 2 tablespoons of water, then pour this slurry into the pan. Stir constantly until a thick, glossy gravy forms around the ingredients.
Chill Completely: Transfer the hot filling into a shallow container and place it in the refrigerator. Let it cool down completely before moving to the next step.
Wrap the Harumaki: Gently peel the wrappers apart. Place one wrapper diamond-style in front of you. Place a portion of the cooled filling near the bottom corner.
Fold the bottom corner over the filling, roll forward once tightly.
Then fold both side corners inward
Roll all the way up, avoiding trapping air inside.
Seal the top edge using a dab of your flour-water paste.
Heat the Oil: Fill a deep pot or tall Dutch oven with about 4 inches of canola oil and preheat it to 330°F (165°C).
Deep Fry: Fry the spring rolls in small batches until they turn a beautiful, uniform golden brown. Carefully remove them and transfer them to a wire mesh cooling rack to drain.
Serve: Serve hot accompanied by a dipping sauce made from equal parts soy sauce and rice vinegar. Add a dab of Japanese hot mustard (karashi) if desired.

Notes

Crucial Cooling Step: Do not rush the cooling process! Wrapping a warm or hot filling will instantly steam the wrappers from the inside out, making them soggy, tearing the pastry, and causing them to explode aggressively when they hit the hot oil.
Crispy Temperature Hack: Frying at too low a temperature will leave your spring rolls saturated in oil and greasy. To counteract this, slightly increase the oil temperature right as the wrappers begin to turn a light golden color to flash-crisp the exterior before removing them.

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