Cut the yellow pickled radish: Slice the yellow pickled radish into strips about 1/4 inch thick. If your radish is big enough, cut the strips so it will fit across the long half of your cut nori sheet. If it's not big enough, cut so it will fit approximately half way across the nori sheet. That way you can fit two across.
Prepare your bamboo sushi mat: Cover your bamboo sushi mat with plastic wrap. This will help keep the rice from sticking to it.
Tear or cut the nori sheet in half: Gently fold the nori sheet in half. Then tear the nori sheet in half along the crease. If it does not tear easily, use kitchen shears to cut in half.
Press rice onto nori sheets: Next, place the nori sheet onto the plastic wrap with the shiny side facing down. Then press around 1/2 cup of rice onto about 3/4 of the nori sheet in an even layer. Leave about 1/4 of the nori sheet without rice as this will help seal the roll. Tip: Wet your hands prior to handling the sushi rice. This will prevent the rice from sticking to your hands. Add the yellow pickled radish to the rice: Place the yellow pickled radish onto the rice. If your slices are long enough to fit across the entire nori sheet, I would add three slices per nori sheet. If they are shorter, double up and put six slices on the nori sheet, trying to make it the same thickness across the roll.
Roll the sushi: Wet the part of the nori sheet that does not contain rice. Starting at the side of the nori sheet with rice, use the bamboo sushi mat to fold your roll until it's completely enclosed. Once the nori is making contact with the rice, pull back the sushi mat so it doesn't get caught in the sushi. Still using the sushi mat as your guide, finish rolling until the roll is completely wrapped. Then wrap the sushi mat around the roll and gently press, tightening the roll together.Keep in mind that rolling sushi is an art that may take some practice so don’t get frustrated if it doesn’t look perfect your first time. It will get easier the more you do it.If you are struggling to roll the sushi, feel free use the whole nori sheet or 3/4 of the nori sheet. This will make the roll easier to roll but the roll will be thicker. Cut the roll: Using a sharp knife, cut the roll into 8 pieces. I do this by first cutting the roll in half. Then cutting each half in half. Then cutting each fourth in half. Tip: Be sure to clean and wet the edge of your knife before cutting each roll.
Serve and enjoy: I usually serve with soy sauce and wasabi. Sushi rolls are traditionally served with pickled ginger as well.