Pre-heat your oven to 160C Fan/180C/350F/Gas Mark 4 and line your baking tray(s) with baking paper
Mix the oats, plain flour, wholemeal plain flour, dessicated coconut and light brown sugar in a bowl
Put the sunflower oil, golden syrup and water in a pan and heat it on high for about 30 seconds until it bubbles. Take it off the heat, and stir in the bicarbonate of soda. Keep stirring until the frothing calms
Pour the wet mixture into the dry ingredients and stir until well combined
Use your hands to shape the biscuits into small balls and put them onto the lined baking tray(s)
Bake for 10-15 minutes until golden. Leave to cool on the baking tray until they are firm before moving to a cooling rack
Melt the dark chocolate and dip the biscuits into it. Leave to set