Step 1

Combine mayonnaise, rice vinegar, mustard, and Sriracha in a bowl with a whisk. Taste and adjust as needed. Chill in the refrigerator until ready to use.

Step 2

Combine chopped imitation crab, green onions, wasabi paste, and 2 tablespoons of our prepared mayo dressing base in another bowl. Refrigerate until needed.

Step 3

Bring a pot of lightly salted water to a boil; reserve a bowl of ice water nearby to add cooked noodles to after boiling. Stir noodles into the boiling water and cook until just tender, about 5 minutes. Drain and transfer to cold water to stop the cooking process.

Step 4

Combine 2 tablespoons prepared mayo dressing base, seasoned rice vinegar, soy sauce, sesame oil, and wasabi paste for noodle dressing in a bowl with a whisk. Drain noodles and toss in sauce until evenly coated.

Step 5

Wrap in plastic wrap and chill for 1 to 2 hours, tossing occasionally.

Step 6

Unwrap noodles and transfer to a serving bowl. Top with avocado, cucumber, and crab mixture; drizzle with more mayo sauce and garnish with furikake.