Add flour (1 1/2 cups) and baking powder (1 tsp) into a large bowl. Stir in oats (1 cup) and sugar (1 tbsp), and make a well in the centre
Whisk eggs (2), milk (1 1/4), melted butter (60g) and vanilla essence (1 tsp) in a jug. Pour onto the dry ingredients and add mashed bananas (2). Use a rubber spatula to gently mix the ingredients together.
Heat a large frying pan over low-medium heat. Using a piece of paper towel, wipe cold butter over the frying pan to grease it. Pour 1/4 cupfuls of mixture into the pan, not too close together Cook for about 3 mins, until a few bubbles appear on the surface and the hotcakes are golden brown underneath. Turn and cook a further 2 mins.