Oyster Motoyaki (Japanese Miso Baked Oysters)

Ingredients

• 6 pieces Large oysters (In shell, fresh)
• 0.5 tablespoon Lemon juice (Freshly squeezed preferred)
• 0.5 tablespoon Mirin (Japanese sweet cooking sake)
• 1 tablespoon Miso paste (White (shiro) miso, low sodium preferred)
• 0.5 teaspoon Sugar
• 0.5 cup Japanese mayonnaise (Kewpie brand preferred)
• 1 dash Paprika (Optional, for heat)
• 1-2 tablespoons Panko crumbs or pork panko (Optional, for texture)
• 1 sheet Aluminum foil (For lining baking tray)
• to taste Salt (Optional, for serving)
• as needed Lemon wedges (For serving)

Instructions

1. Make the miso mayo sauce

   In a small bowl, combine 0.5 tbsp lemon juice, 0.5 tbsp mirin, 1 tbsp miso paste, and 0.5 tsp sugar. Mix well until smooth. Add 0.5 cup Japanese mayonnaise and a dash of paprika (optional). Mix until fully combined. Stir in 1-2 tbsp panko or pork panko if desired for texture.

   Time: PT5M

2. Prepare and open the oysters

   Place the 6 oysters (in shell) on a microwave-safe plate. Microwave on 70% power for 30 seconds to loosen shells. Carefully remove and use a knife to pry open the shells. Run the knife along the top edge to release the oyster meat. Set aside.

   Time: PT5M

3. Preheat oven and prepare baking tray

   Preheat oven to 350°F (175°C). Line a small baking tray with aluminum foil, crinkling it to create a stable surface for the oyster shells to sit upright.

   Time: PT3M

   Temperature: 350°F

4. Chop oysters and assemble

   Optionally, chop oyster meat into bite-sized pieces and return to the bottom shell. Arrange shells on the prepared tray.

   Time: PT3M

5. Top oysters with sauce

   Spoon 1-2 scoops of the miso mayo sauce over each oyster, covering the meat completely.

   Time: PT2M

6. Bake oysters

   Bake oysters in the preheated oven for 5 minutes.

   Time: PT5M

   Temperature: 350°F

7. Broil for golden top

   Switch oven to broil. Broil oysters for 1-2 minutes, watching closely, until tops are golden and slightly blistered.

   Time: PT2M

   Temperature: Broil

8. Cool and serve

   Remove oysters from oven and let cool for 1-2 minutes. Transfer to serving plate. Optionally, sprinkle salt on the plate to help keep shells upright. Serve with lemon wedges.

   Time: PT2M

9. Cleanup

   Wash all used utensils, mixing bowls, knives, cutting board, baking tray, plate, and serving utensils. Discard or compost oyster shells.

   Time: PT12M

Nutrition Facts

Calories

350

Protein

12g

Carbohydrates

10g

Fat

28g

Fiber

0.5g

Ingredient Substitutions

• Instead of Large oysters: Small oysters (adjust quantity), Pre-shucked oysters (less flavor)
• Instead of Lemon juice: Bottled lemon juice, Yuzu juice
• Instead of Mirin: 1/2 tbsp sake + 1/4 tsp sugar, Rice wine + sugar
• Instead of Miso paste: Yellow miso, Red miso (stronger flavor)
• Instead of Sugar: Honey, Agave syrup
• Instead of Japanese mayonnaise: Regular mayonnaise + 1 tsp rice vinegar + 1 tsp sugar
• Instead of Paprika: Cayenne pepper (spicy), Chili powder
• Instead of Panko crumbs or pork panko: Crushed crackers, Breadcrumbs, Omit for gluten-free
• Instead of Aluminum foil: Parchment paper (less stable for shells)
• Instead of Lemon wedges: Yuzu wedges, Lime wedges

Equipment Needed

• Small mixing bowl
• Spoon or small whisk
• Microwave (optional)
• Knife (for shucking and chopping oysters)
• Cutting board
• Baking tray
• Aluminum foil
• Oven with broiler function
• Tongs or oven mitts
• Serving plate
• Fork (for eating)

Critical Steps — Do Not Skip

• Properly shucking or opening oysters without injury.
• Ensuring oysters are not overbaked or overbroiled.
• Covering oysters completely with sauce to prevent drying out.
• Watching closely during broiling to prevent burning.

Chef Tips from the Video

• Kewpie mayo gives authentic flavor, but you can make a substitute with regular mayo, rice vinegar, and sugar.
• Pork panko is a great low-carb alternative to regular panko.
• Use a kitchen towel to grip oysters securely when opening.
• Serve immediately for best texture and flavor.

Troubleshooting

Storage

Refrigerator: Store leftovers in an airtight container for up to 1 day. Reheat gently; oysters may toughen.

Freezer: Not recommended; texture will suffer.

Room temperature: Do not leave at room temperature for more than 1 hour due to seafood safety.

Make-Ahead Tips

• Sauce can be made up to 2 days ahead and stored in the refrigerator.
• Oysters should be shucked and baked just before serving for best texture.