Heat oven to 160C/140C fan/gas 3.
Grease and line a 20cm square tin with
baking parchment. Heat the butter,
peanut butter and honey or maple syrup
in a small pan until melted. Add the
mashed banana, apple and 100ml hot
water, and mix to combine.
Tip the oats, the dried fruit and the
seeds into a large bowl. Pour in the
combined banana and apple and stir until everything is coated by the
wet mixture. Tip into the cake tin and
level the surface. Bake for 55 mins
until golden. Leave to cool in the tin.
Cut into 12 pieces to serve or store
in an airtight container in the fridge.
They will keep for up to 3 days.