Mix with a whisk until the sugar is dissolved.
Mix the dry ingredients and pour the water and egg in the center.
Use a whisk to mix everything starting in the center and slowly incorporating the dry ingredients.
Cut the spring onion in 3cm pieces and if too thick also cut lengthwise.
Mix the shrimp with the sesame oil as well as salt.
Put 1 tbsp of vegetable oil on a 20cm pan on medium heat.
Put 1/4 of the batter and a few fillings on top.
Add another 1/4 of batter on top of the fillings and then put even more on top of that.
Let cook for 4min or until really golden underneath.
Add 1/2 the broken egg on top and flip.
Cook for 2 min and serve with the egg side up.
Repeat with the second pancake.