Steps
- To prepare the avocado emulsion: In a food processor, combine the avocado, lime zest, lime juice, and smoked paprika. Blend for about 2 minutes, stopping occasionally to scrape down the sides of the bowl, until very smooth. Season with salt and pepper to taste. Transfer the emulsion to a small bowl and press plastic wrap directly onto its surface. Refrigerate for up to 8 hours or until ready to serve.
- To assemble the crab rolls: Wear clean rubber gloves. Break the crab legs at the joints, then use kitchen shears to cut along the shell lengthwise and crack them open. Remove the meat in large pieces and discard the shells. Cut larger leg meat crosswise into 2.5-cm pieces. Extract meat from the knuckles in large chunks as well.
- Using a vegetable peeler, slice long, thin slabs from one side of the cucumber, avoiding the seeded core. Discard the first couple of slices and repeat on the opposite side to create 12 slabs in total. Cut each slab in half crosswise.
- Lay 6 cucumber slabs flat on a work surface. Place a piece of crab or a small bundle at one end of each slab, then add a pinch of julienned radishes on top of the crab. Roll the cucumber slabs tightly to enclose the filling and form small rolls.
- To serve: Arrange the rolls on a platter and spoon a dollop of avocado emulsion onto each roll. Garnish with coriander leaves and serve immediately.