Datemaki is a Japanese sweet rolled omelette traditionally eaten for the New Year as a part of Osechi Ryori. This easy version comes together from just a handful of ingredients and yet it is fluffy and moist.
Put the oven rack in the middle position and preheat the oven to 375 degrees F (190 C).
Soak a makisu (bamboo sushi mat) in water.
Line an 8-inch square baking pan with parchment paper.
Add the 90 grams hanpen, 5 large eggs, 2 tablespoons mirin, 2 tablespoon evaporated cane sugar, and ⅛ teaspoon salt to a blender and puree until smooth.
90 grams hanpen, 5 large eggs, 2 tablespoons mirin, 2 tablespoon evaporated cane sugar, ⅛ teaspoon salt
Pour the mixture into the prepared pan and place it in the oven.
Bake for 10-12 minutes or until a toothpick inserted into the center of the egg comes out clean.
When it's done, let the Datemaki cool for a minute or two. It should be cool enough to handle, but still hot.
Remove the parchment paper and place the egg onto the bumpy side of the damp bamboo mat.
Starting slowly, roll the egg up using the matt.
Wrap rubber bands around the matt to compress the Datemaki and hold its round shape.
Wrap the whole roll in plastic wrap and let it rest in the fridge for at least 2 hours, or as long as overnight.
Unwrap the Datemaki and slice it up into 10-12 slices.