Crack eggs into a bowl, add baking soda and honey, and whisk together.
Add brown sugar, and mix well. Sift the flour, and mix in lightly until the batter is no longer floury.
Line a baking sheet with parchment paper, and spoon the batter. Top with sesame seeds, aonori seaweed powder, sansho leaves, etc.
Baked on the middle rack of a preheated 355°F/180°C oven for 8 to 10 minutes.
Whoa! They puffed up.
Story Behind this Recipe
You don't buy maruboro anymore, do you? When my child was in kindergarten, the mother of a student I was friendly with moved away due to a job transfer. She used to make these nostalgic boro for me, so I recreated that flavor.
The key may be using brown sugar instead of white. Adjust the sweetness with the amount of brown sugar. Even if you spread the batter out thinly, it will puff up in the middle. Even if you add a lot of topping, the cookie will still puff!