In a saucepan melt the coconut oil over medium heat. Add the tahini and honey and stir until combined.
Mix in the grainola, stirring to make sure it is well coated. Take off the heat.
Line a baking tin with baking paper. Pour the mixture in and smooth over with a spatula. Press down to compact. Place in the fridge or to set, for about 1 hour.
Drizzle with melted chocolate and refrigerate for a further 15 minutes. Cut into 8 large bars, or the shape and size that you prefer.
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