Preheat your oven to 180°C (160°C Fan, gas mark 4) and line a square baking tin with parchment paper. I used a 9″ square baking tin.
Add butter, golden syrup and light brown sugar to a large mixing bowl and melt in the microwave on a medium heat. Stop the microwave every 10 to 15 seconds and give the mixture a stir. Repeat this until the mixture has melted.
80 g Light Brown Sugar, 220 g Butter, 100 g Golden Syrup
Add porridge oats to the melted ingredients and mix together until thoroughly combined. Make sure the oats are generously coated.
300 g Porridge Oats
Add the chocolate chips into the flapjack mixture and mix it together until evenly distributed.
100 g Chocolate Chips
Pour the flapjack mixture into a lined baking tin and spread the mixture evenly into all four corners. Then press down using the back of a spoon.
Bake in the oven for 20 minutes or until the edges have turned golden brown. Once baked, leave the flapjack to cool down before cutting it into slices.
Video
Notes
Try not to overheat the mixture when melting the butter, golden syrup and light brown sugar. If the mixture is too warm, it will melt the chocolate chips before the flapjack even enters the oven. Allow the mixture to cool down for 5 minutes before adding the chocolate chips.
How To Cut Flapjacks
Score the flapjack into square slices whilst hot. When it has cooled down, cut it into slices. Scoring the flapjack will help prevent it from breaking when cutting it cold.
My Flapjack Is So Hard!
Flapjacks can become hard if they are baked in the oven for too long. To prevent this, remove the flapjacks from the oven when they're a golden-brown colour.
How To Store Chocolate Chip Flapjack
I place the chocolate chip flapjacks in an airtight container and store it at room temperature. They will stay fresh for around 5 days. You can put parchment paper between each layer to prevent sticking. If you want to freeze them, freeze the flapjacks for up to 3 months.
Chocolate Chunks
Instead of chocolate chips you can use chocolate chunks. They are slightly bigger, smoother and leave bigger pieces of chocolate within the flapjack.