If using, combine all ingredients for the dipping sauce in a small bowl and set aside.
1 tbsp tamari sauce, 1 tbsp vinegar, 1 tbsp water, 1 tsp sesame oil, 1/2 tsp sugar, 1/2 tsp toasted sesame seds, 1/4 tsp gochugaru
In a large mixing bowl, stir together flour, potato starch, and baking powder.
1 cup gluten free all-purpose flour, 3 tbsp potato starch, 1 tsp baking powder
In a separate bowl, stir together water and kimchi juice. Slowly add this to the flour mixture while whisking until smooth.
1 cup cold water, 2 tbsp kimchi juice
Add kimchi, onion, and green onion, and fold to combine. Add more water if the batter seems too thick - the batter should be like a thin pancake batter.
1 cup well fermented kimchi, 1/2 onion, 2 green onions
Add 1 tbsp of avocado oil in a skillet over medium high heat.
Avocado oil
Scoop out some of the batter on the skillet and spread in a thin even layer (the amount of the batter will depend on the size of the pan - I was able to make 3 pancakes in a 9-inch skillet).
Cook for 3 minutes, until the edges are golden. Flip, add more oil to the sides, then tilt the pan so the oil can spread out through the bottom.
Press the pancake down with a spatula, then cook for another 3 minutes until crisp and brown on the bottom.
Remove from the pan, then repeat with the rest of the batter.
Slice into bite sized pieces and serve with the dipping sauce, if using.