This is perfect for lunch or a side dish for a larger meal - either way, enjoy it with lashings of crispy chilli oil and get stuck in!
Start by combining the hot water and flour. Mix with a wooden spoon until it's cool enough to handle, then knead until smooth. Allow to rest for 15 minutes.
Meanwhile, combine the melted butter and flour - it should be paste like. This is also a good time to finely chop your spring onions (you can also use a food processor)
Roll out the dough into a rectangle - as thin as you like. Spread over the flour-butter mixture, then sprinkle over the spring onions and chilli flakes.
Roll up from the shorter side into a long log. Slice into 4 equal portions.
Flatten them down, so the spring onions are in a spiral throughout the dough. Gently roll out to flour tortilla size.
Add a splash of vegetable oil to a non-stick pan over medium heat, then add one of the pancakes. Cook until light golden brown, then flip. Repeat with the rest of the dough
Once you've done the final pancake, turn the heat down to medium/low. Top with shredded mozzarella, then another pancake. Cook until the cheese has melted, flipping once. Repeat with the other two.
Serve with chilli oil, and enjoy!