Mix your wet ingredients together in a large mixing bowl, then add your dry ingredients and mix until you have a smooth batter.
Set the batter aside and mix your cinnamon butter together – add your softened butter, sugar and cinnamon to a small bowl and mix until you have a paste, then add 1 tbsp of your pancake batter and mix until smooth. Add this mixture to a piping bag, snipping a tiny hole out of the end.
Melt 1 tsp butter in a small frying pan on medium-low heat, then add a ladle of pancake batter to the pan, immediately piping a swirl pattern onto your pancake with your butter mixture.
Cover the pan with a lid and allow the pancake to steam – do not flip, just allow it to cook for around 2 minutes, then place onto a chopping board and allow it to settle – the butter will seep into the pancake and settle, forming a swirl.
Repeat with the rest of the pancake batter. Then when ready to eat, stack up and top with your icing.