Heat oven to 180C/160C fan/gas 4 and line a 20 x 30cm baking tin with parchment. Melt the butter, sugar and syrup in a large pan over a medium heat. Once melted, stir in the oats, coating them well.
Tip ¾ of the mix into the tin and scatter the cherries over the top. Combine the remaining oat mix with the coconut flakes and tip on top of the cherries, making sure a few poke out. Bake for 30 mins, then remove from the oven and allow to cool before slicing into 12 flapjacks.