Lyle's Golden Syrup Flapjack Recipe

Cook up a batch of these beautifully put together Lyle’s Golden Syrup flapjacks for a filling treat, anytime. Pure Lyle’s smiles baked in.

Prep Time
Cook Time
25-30 minutes
16 small or 9 medium flapjacks
  • 295g Unsalted butter
  • 250g Lyle's Golden Syrup
  • 500g Rolled porridge oats (not the jumbo variety)
  • Pinch of salt

How To Make Lyle's Flapjacks

Chewy, classic, and packed full of healthy wholegrain oats, flapjacks are a long-standing family favourite. What’s more, these scrumptious snacks are notoriously simple to make and suit every occasion – from parties and gatherings, to low key evenings in front of the television.

Try your hand at our popular flapjack recipe and treat yourself and your loved ones to some chewy gooey goodness!  



Follow these 3 simple steps for the ultimate Lyle’s Golden Syrup flapjack...

  1. Preheat the oven to 180°C/160° Fan, 350°F, Gas 4 while you combine the butter and Lyle's Golden Syrup in a large non-stick saucepan. Heat gently until melted, then remove from the heat and stir in the oats and salt.
  2. Spoon the mixture into a 20cm (8”) shallow square loose-bottomed tin, greased and lined with parchment paper. Level and press firmly with a palette knife to smooth. Bake on the middle shelf for 25 minutes, until gorgeously golden brown on top.
  3. Remove and leave to cool in the tin for 30 minutes. Then lift out of the tin to cool completely on a wire rack. Once cooled, cut into 9 medium or 16 small squares.

Flapjacks are the perfect snack anytime – and there’s nothing the kids like to see more in their lunch boxes…

The Key Indredient

Enriching your flapjacks with Lyle’s Golden Syrup is the best way to achieve that irresistible melt-in-the-mouth texture and sweetly caramelised flavour loved by generations.

  • Lining the baking tin with parchment paper makes it easy to remove the flapjacks. Once they have cooled in the tin you can slide the whole flapjack on its paper onto a board to cut into pieces.
  • If you’re feeling adventurous, try adding some extra ingredients to your flapjack mix. Some popular additional extras often include: berries, chocolate, caramel, raisins and nuts.
  • Flapjacks can be frozen but remember that if they contain moist fruit such as apples or blueberries, they might soften on thawing.