1: Prepare cucumber by cutting it in half lengthwise and scooping out the seeds to create boats.
2: Cook sushi rice according to package instructions and let it cool.
3: Fill each cucumber boat with sushi rice.
4: Slice the avocado and arrange it on top of the sushi rice.
5: Drizzle sriracha mayo over the avocado.
6: Sprinkle furikake on top for added flavor.
