Easy Salmon Avocado Sushi Squares with Spicy Mayo: Step-by-Step Instructions

Step-by-Step Instructions

Step 1: Prepare the pan

Start by lining an 8-inch square baking pan with a clean sheet of parchment paper. Ensure the paper extends up up the sides of the pan, creating an overhang that acts as a handle. This step is crucial for lifting the finished sushi slab out of the pan later without breaking the delicate layers of rice and fish underneath.

Step 2: Layer the salmon

Take your thinly sliced smoked salmon and arrange it across the bottom of the prepared pan. Over each piece slightly so there are no gaps, ensuring the entire surface of the pan is completely covered. Try to keep the slices flat and even to create a sturdy foundation for the ingredients you will be adding on top of the salmon.

Step 3: Add the avocado

Slice your two ripe avocados in half, remove the pits, and then slice them into thin even pieces. Arrange these slices evenly over the layer of smoked salmon. You want to cover the entire surface from edge to edge, creating a beautiful green layer that will look stunning once the squares are sliced later on.

Step 4: Spread the rice

Spoon 2 to 3 cups of your cooked short-grain sushi rice over the avocado layer. Use a spoon to spread the rice evenly across the entire pan. Press gently with the back of the spoon to help the rice settle and adhere to the avocado, being careful not to mash the fruit down into a paste.

Step 5: Press the layers

Grip the edges of the parchment paper and fold it over the rice to create a package. Use your palm to press down firmly over the parchment across the entire surface. This pressure ensures that the layers are packed tightly enough so that the squares will not fall apart when you flip them or cut them later.

Step 6: Flip and release

Place a large flat plate over the top of the pan. Carefully and quickly flip the entire thing upside down so the sushi is now resting on the plate. Once secure, lift the pan up up. Slowly and carefully peel away the parchment paper to reveal the perfectly layered slab of sushi squares sitting on the plate.

Step 7: Slice into squares

Using a very sharp chef knife, carefully slice the layered slab into 16 equal squares. To get the cleanest cuts, wipe the knife with a damp cloth between every single slice. This prevents the rice from sticking to the blade and ensures the colorful layers of salmon and avocado remain sharp and visually appealing.

Step 8: Garnish with sauce

Drizzle the spicy mayo in a decorative zigzag pattern over all sixteen sushi squares. Once the mayo is applied, sprinkle the black sesame seeds evenly over the top. This adds both a pop of color and a nutty flavor that complements the creamy avocado and smoky fish perfectly.

Step 9: Prepare the dipping sauce

Pour the soy sauce into a small dipping bowl. Sprinkle the white sesame seeds over the soy sauce and distribute them evenly. This creates a simple yet elegant dipping element that enhances the saltiness of the salmon and the richness of the fresh avocado.

Step 10: Serve and enjoy

Transfer the sushi squares to a final serving platter and place the bowl of soy sauce in the center. Serve the sushi squares immediately while the rice and avocado are at their peak freshness. Your guests can dip each square into the soy sauce before eating.

Expert Tips

• Ensure your avocados are perfectly ripe by yielding to gentle pressure, as hard avocados will be difficult to eat and overripe ones will mush.
• Use sushi rice that is at room temperature before layering, as hot rice will melt the avocado and make the entire structure too messy.
• Keep your knife extremely sharp and wipe it wet before every cut to ensure clean, professional layers through the rice and fish.
• Don't overwork the rice when pressing down; you want it firm enough to hold together without turning the grains into a gummy paste.
• For the best presentation, try to slice the salmon as thinly as possible to ensure a uniform layer across the entire square baking pan.

When cooking meat or fish, a quick check with an instant-read thermometer takes the guesswork out of doneness; see the safe minimum internal temperatures chart for reference.

Variations

• For a vegetarian version, swap the smoked salmon for thinly sliced cucumber strips or roasted bell peppers for a vibrant crunch.
• Add a kick by layering thinly sliced fresh jalapeños between the avocado and the rice layer before pressing.
• Use rice rice tinted with a drop of beet juice for a visually striking pink layer in your sushi squares.
• Substitute the spicy mayo with a thin layer of cream cheese before the avocado for an even richer and creamier profile.

Serving Suggestions

Serve these salmon avocado sushi squares alongside a refreshing cucumber and ginger salad to cut through the richness of the avocado and salmon. A side of pickled ginger and seaweed salad also provides a wonderful palate cleanser between bites. If you are serving this as a light meal, pair it with a light miso soup or a chilled vegetable broth. The vibrant colors of the squares make them look beautiful on a dark slate or a wooden board for a modern aesthetic.

Storage and Reheating

These sushi squares are best enjoyed immediately after preparation to maintain the texture of the rice. If you do have leftovers, store them in an airtight container in the refrigerator for up to 24 hours. Note that the avocado may brown slightly, and the rice may become firm up over time. Do not freeze these squares, as the texture of the fresh avocado and the sushi rice will lose its quality completely upon thawing. For general guidance on how long cooked dishes keep, see these cold food storage charts.

Frequently Asked Questions

Can I use regular white rice for this recipe?

No, short-grain sushi rice is essential here because of its high starch content which allows it to stick together. Long-grain or jasmine rice is too loose and the squares will fall apart when you try to slice them.

How do I know if the avocados are ready for sushi?

The avocado should feel slightly soft when pressed gently in your palm. If it is too hard, it won't slice well, and if it is too soft, it will turn into a mash when you try to layer it.

Can I make these squares ahead of time?

Yes, you can assemble them up to four hours in advance. Keep them tightly wrapped in plastic wrap in the fridge to prevent the rice from drying out and the avocado from browning due to air exposure.

What if the rice is sticking to the knife while slicing?

The best trick is to keep a damp cloth nearby and wipe the blade of your knife after every single cut. This keeps the blade clean and allows it to glide through the layers effortlessly.

Is there a substitute for spicy mayo?

Certainly, you can use regular mayonnaise mixed with with a little bit of hot sauce of your choice. Alternatively, you could use a thin drizzle of sweet chili sauce if you prefer a different flavor profile.

Final Thoughts

These Salmon Avocado Sushi Squares are a fantastic way to enjoy the flavors of sushi without the complexity of traditional rolling. By following this simple layering method, you create a dish that looks as professional as something from high-end restaurant. The combination of smoky salmon, creamy avocado, and seasoned rice is a guaranteed winner for any occasion. I hope your family and friends enjoy these beautiful and delicious treats as much as you enjoyed making them!

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Learn more: Avocado on Wikipedia · food storage & safety (FoodSafety.gov).