Breakfast

Whisk together buckwheat flour and salt in a mixing bowl.
Whisk in egg and half the water until combined.
Cover the batter and let it rest 1 hour at room temperature.
Gradually whisk in remaining water to reach a thin, pourable consistency.
Pre-cook any fillings that require more than 1 minute.
Heat a large flat skillet (about 30 cm) over medium heat.
Grease the hot pan with butter (about 1 tbsp) and spread to coat.
Ladle batter into the pan and spread to a pancake no more than 3 mm thick.
Cook until the top is dry and the bottom is lightly golden, then flip with a spatula.
If not filling immediately, cook until the second side is golden, then remove and set aside.
When filling, arrange fillings in the center leaving a border, cook bottom, fold four edges into the center to enclose filling, and serve hot.
Repeat until all batter is used.
This recipe is adapted from Wikibooks. It is licensed under Creative Commons Attribution-ShareAlike 4.0 International.