Pre-hear the oven to 175 degrees C / 350 F. Melt 50 g of butter in a saucepan and add 100 g of golden syrup (or honey) warm it up until they have combined into a runny mixture and turn off the heat.
Next add 2 handfuls of sultans (or raisins) and then stir in 200 g of porridge oats and mix them in well.
Grease a baking tin (24cm x 16 cm) and pour in the flapjack mixture and smooth it out and push it down with the back of a spoon.
Put it in the oven for about 15 minutes until it begins to brown around the edges. Take it out of the oven and cut lines in it while it is still hot.
Allow the flapjacks to cool completely and then take them out of the tin and enjoy them!