I used the following recipe to make some plan flapjacks and some that contain fruit and nuts.
150g unsalted butter
50g brown sugar
100g golden syrup
250g of oats
In a pan place the butter, sugar and syrup together. I find one way to measure the golden syrup is to put the pan on the scales, zero the scales and then add the syrup.
I put the pan on a low heat, better to take your time than burn the mixture. Once the sugar, butter and syrup are bubbling slightly take it off the heat and stir in the oats.
Place half the mixture into lined tin using baking parchment (or a greased tin). I then added the mixed fruit and nuts (well what I had in the cupboard was cranberries, raisins and cashew nuts) into the oat mixture, before placing that into another lined tin.
The flapjacks are baked in a pre-heated 200ºC oven for about ten minutes or until the edges are browned.
Leave the flapjacks to cool in the tins, or they will fall apart.