1. Place Weet-Bix, flour and caster sugar in a mixing bowl.
2. Add So Good and banana and mix well.
3. Heat a non-stick frying pan until almost hot. Spray with oil and add a heaped tablespoon of mixture. Cook for 1-2 minutes then turn over and cook briefly. Repeat with remaining mixture

Topping:

1. Place chestnuts in a saucepan of boiling water. Cook for 10 minutes, drain and then remove the brown skin and chop.
2. Combine margarine, brown sugar and lemon juice in a saucepan. Cook gently on a medium heat for approximately 2-3 minutes, stirring occasionally until sugar is dissolved and mixture is like a syrup.