First, make the marinated eggs. Carefully place the cold eggs straight from the fridge into a pot of rapidly boiling water using a ladle, and boil for 7 minutes.

While the eggs are boiling, combine all the ingredients marked with ○ (soy sauce, sugar, mirin, sake, dashi) in a container and microwave for about 20 seconds to dissolve the sugar and dashi.

Once the eggs are done, transfer them to cold water, peel them, and place them in the container from step 2. You can also use a plastic bag to ensure the eggs are evenly marinated.

Mix all the ● ingredients (rice, bonito flakes, soy sauce, sesame seeds if using). Wrap the marinated egg with the rice mixture, then wrap with a sheet of nori to form the onigiri. I like to use plastic wrap to help shape them.