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Ingredients
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Seafood
Rice & Wrap
Fillings & Garnish
Ponzu Brown Butter Sauce
Finishing
Method
Rice & Prep
- 1
Cook sushi rice
Rinse 1.5 cups short-grain sushi rice under cold water until the runoff is clear. Combine rinsed rice and 1.5 cups water in a rice cooker or small saucepan. Bring to a boil, then reduce heat to low, cover and simmer 15 minutes (or cook per rice cooker instructions). Let rest, covered, 10 minutes.
- 2
Season rice
Warm 3 tbsp rice vinegar, 1 tbsp sugar and 1/2 tsp salt in a small saucepan or microwave until sugar dissolves. Gently fold the seasoned vinegar into the cooked rice with a wooden spoon or rice paddle. Fan rice as you fold to cool to body temperature. Keep covered with a damp towel until assembly.
- 3
Prepare nori sheets, slice avocado in half, remove pit, and slice into long thin strips. Julienne 1/2 cucumber and thinly slice scallions. Toast 1 tsp sesame seeds in a dry skillet over medium heat 1–2 minutes until fragrant; set aside.
Seafood
- 4
Season tuna
Pat 8 oz sushi-grade ahi tuna dry. Season lightly with 1/2 tsp kosher salt and 1/4 tsp black pepper on all sides.
- 5
Sear tuna
Heat a heavy skillet (preferably cast-iron) over high heat until very hot. Add 1 tsp neutral oil and swirl. Sear tuna 20–30 seconds per side for rare-medium-rare, rotating to get all sides evenly seared, or longer for desired doneness. Remove and let rest 3 minutes, then slice into 1/4-inch strips across the grain.
- 6
Cook shrimp
Season shrimp with the remaining 1/2 tsp kosher salt and 1/4 tsp black pepper. In the same skillet over medium-high heat add 1 tbsp unsalted butter and a drizzle of oil. Cook shrimp 1.5–2 minutes per side until opaque and cooked through. Remove and keep warm.
Ponzu Brown Butter Sauce
- 7
Brown the butter
In a small saucepan or skillet, melt 2 tbsp unsalted butter over medium heat. Swirl and cook until the milk solids turn golden brown and smell nutty (2–4 minutes). Remove from heat immediately to stop burning.
- 8
Finish sauce
Add 1 tsp minced garlic and 1/2 tsp grated ginger to the browned butter off the heat; stir briefly. Add 1/4 cup ponzu, 1 tsp mirin, 1 tsp soy sauce, and 1 tsp fresh lemon juice. Return to very low heat for 30 seconds to combine, then remove. Taste and adjust (add more ponzu for acidity or a pinch of sugar if too salty). Keep warm.
Assembly
- 9
Lay a bamboo sushi mat on a work surface and place a sheet of plastic wrap over it (optional to prevent sticking). Place one nori sheet shiny-side down on the mat.
- 10
Wet your hands and spread about 3/4 cup seasoned sushi rice evenly over the nori, leaving a 1-inch strip at the far edge uncovered to seal the roll. Press rice gently but firmly.
- 11
- 12
Carefully lift the mat edge and roll away from you, tucking the filling tightly and pulling the mat as you roll to form a compact cylinder. Press gently to shape. When you reach the uncovered nori edge, moisten it with a little water to seal.
- 13
Using a sharp, wet knife, slice the roll into 8 pieces. Wipe the knife clean and wet between cuts for cleaner slices.
- 14
Arrange roll pieces on a serving platter. Spoon the warm ponzu brown butter sauce over the top of each piece (about 1/2 tsp to 1 tsp per piece) or serve the sauce on the side for dipping.
- 15
Finish with a sprinkle of toasted sesame seeds, a few thin scallion rings, and optional microgreens. Serve with pickled ginger and wasabi or wasabi mayo on the side.