If using frozen imitation crab, defrost overnight in the fridge. For a quick defrost, soak frozen imitation crab in its original packing in warm water for about 20-30 minutes or until completely defrosted.
While imitation crab is defrosting, shred carrots and slice cucumbers into thin match sticks. Set aside.
In a small bowl mix kani salad dressing by combining mayo, lemon juice, and sesame oil. Season with a little bit of fresh cracked black pepper. If you are using regular mayo, add in a tiny sprinkle of sugar (skip this step if you are using Kewpie mayo). You can also add in 1/2 teaspoon of Japanese or Korean mustard for an extra kick. Another option is to add sriracha hot sauce if you are looking for more of a spicy mayo type of dressing.
Once imitation crab has defrosted, remove imitation crab from packaging, including its individual clear wrapping. With clean hands or gloves, shred crab sticks. Pro tip: it helps to roll one piece at a a time between your palms until imitation crab sticks begin to fall apart.
In a bowl combine shredded imitation crab, shredded carrots, and cucumbers. Add in dressing and mix until everything is well coated. Taste test and season with salt and black pepper to liking.
Serve immediately. You can also serve kani salad as a topping to salads or as a sushi bowl on top of sushi rice. Kani salad is also delicious as a hand roll and is a great party dish that you can prepare a head of time. Store in an airtight container in the fridge until ready to serve.