Onigiri (also called omusubi or rice ball) is shaped Japanese rice — usually filled with something inside (pickled plum, salted salmon, tuna mayo) and often wrapped partially in nori. It is NOT sushi — sushi rice is seasoned with rice vinegar, sugar, and salt, while onigiri uses plain salted rice. Both are popular in Japanese cuisine but serve different purposes. Onigiri is an everyday snack food; sushi is typically a more special meal.

Always use Japanese short-grain rice (also sold as sushi rice or Calrose rice in most supermarkets). Short-grain rice contains more starch, which is what makes it sticky enough to hold its shape when moulded. Medium or long-grain rice (like basmati or jasmine) won’t stick together and your kawaii shapes will fall apart. For onigiri, use plain cooked rice with a little salt. For sushi, season the cooked rice with a mixture of rice vinegar, sugar, and salt.

The moisture from the rice naturally makes nori stick on its own — you don’t need glue. Simply press the cut nori pieces gently onto the surface of the rice and they’ll adhere. For faces on sushi rolls, the nori goes on the outside of the roll and is naturally pressed against the rice. The key timing rule: add nori decorations right before serving or packing the bento. If left for more than 30–60 minutes, the nori absorbs moisture from the rice and becomes soft and wrinkled, losing its crispness and appearance.

Absolutely — many of the best kawaii sushi ideas use cooked or vegetarian fillings. Popular options: cucumber and avocado (the classic vegetarian roll), cooked prawn/shrimp, cream cheese and smoked salmon, tamagoyaki (Japanese omelette), pickled vegetables (takuan), edamame, or seasoned tofu. For character onigiri, the filling is hidden inside so anything that tastes good works — tuna mayo is one of the most popular onigiri fillings worldwide.

The aesthetic Japanese plate look comes from a few key principles: (1) Use a dark or stone-coloured plate — black, slate grey, or deep navy makes the white rice and colourful toppings pop visually. (2) Odd numbers — arrange 3, 5, or 7 pieces rather than 4 or 6 for a more natural, professional look. (3) Height variation — mix flat nigiri with rolled maki and taller onigiri for visual interest. (4) Small garnishes — a sprig of shiso leaf, a few edamame, pickled ginger, or edible flowers fill gaps and add colour. (5) Wasabi and soy on the side always — small ceramic dipping bowls elevate the whole aesthetic.