150g/5½oz peeled banana, mashed
1 large lemon, juice and rind only
120g/4½oz rolled oats, pulverised in a food processor
2 large eggs plus ½ tsp wheat-free and gluten-free baking powder, OR if you can't eat eggs, 2 heaped tsp wheat-free and gluten-free baking powder
120g/4½oz virgin coconut oil or dairy-free margarine
25g/¾oz potato flour or cornflour
100²µ/3½´Ç³ú sultanas