Melt the butter in a large saucepan over a gently heat with the syrup and sugar.
Stir in the remaining ingredients and mix well.
Press into a 22cm (9") sq silicon mould or lined tin.
Bake at 180℃ (350℉, Gas 4) for 15-20 minutes or until the top is set and golden.
Allow to cool completely, then cut into twelve slices.
Notes
Please note: calories and other nutritional information are per serving. They're approximate and will depend on serving size and exact ingredients used.