Combine the dry ingredients and whisk gently to combine
Add the wet ingredients and fold gently to combine to create a uniform thick batter - some small lumps are ok
Fold in the toasted walnuts, reserving a tablespoon for a garnish
Grease the frying pan with unsalted butter
Using a ¼ cup measuring cup, spoon the batter into a frying pan on medium heat
Flip over once you see bubbles appearing on the surface
Repeat with the rest of the batter and serve as a stack, topped with sliced bananas, walnuts and drizzled with maple syrup