Twice Baked Toffee Banana Flapjacks

Want more from Genius Kitchen?

Watch on your Apple TV, Roku, or Fire TV and your iOS, Fire, or Android device.

Learn More
“After cutting the flapjacks, they go back into the oven and become chewy, crunchy and gooey all at once! Sensational!”
1hr 15mins
9 flapjacks

Ingredients Nutrition

  • 100 g butter
  • 100 g golden caster sugar (can use light brown sugar)
  • 6 tablespoons golden syrup (can use half maple syrup)
  • 230 g oats (any kind except instant powered oats)
  • 2 very ripe chopped bananas (showing black spots but still with white flesh)
  • 1 pinch salt


  1. Preheat the oven to 160C/325F.
  2. Melt the butter over a medium heat in a large pan and add the sugar, syrup and salt.
  3. Once completely melted and combined and almost foaming add the chopped bananas and cook for 2 minutes.
  4. Add the oats, turn off the heat and mix well.
  5. Put the mixture into an ovenproof dish lined with clingfilm (this is a chefs trick, don't worry it won't melt).
  6. Bake for 25 minutes, cut into squares whilst still in the dish and allow to cool until 'set'
  7. Now set the oven to 140C/275F.
  8. Carefully turn the flapjacks out of the dish and slice properly.
  9. Place them individually, directly onto the oven shelf and bake for around 30 minutes to allow them to caramelize and dry out a little. Bake longer for even crunchier and chewier results.
  10. One of life's dreams come true!

Watch more

Join the Conversation

  • all
  • reviews
  • tweaks
  • q & a