To melt the chocolate: Prepare a large heatproof bowl that fits over a saucepan. Fill the saucepan with a few centimetres of water, but not so much that it touches the base of the bowl. Bring the water to a simmer, and melt the chocolate in the large bowl above the saucepan. Stir until smooth. Alternatively, melt the chocolate in the microwave at 30 second intervals, stirring in between.
Stir the tahini into the chocolate and mix until smooth.
Then add the oats and mix again.
Line two baking trays with paper, or lightly grease them with oil.
Scoop out spoonfuls of the oat mixture onto the tray. You should be able to fit approximately 12 per tray.
Leave to the cookies to set. Put them in the fridge and they'll be ready after about an hour, or leave them out overnight.
When they are hard to the touch, gently lift the cookies from the tray (A hot knife will help if they need unsticking) or peel from the paper.
Enjoy your cookies! And store in the fridge if it's hot.
Notes
No scales? 7oz/200g chocolate is approximately 1 ⅛ cups of chopped chocolate or chocolate chips. Ingredient notesThe type of chocolate you use will control the level of sweetness. Choose 50% dark chocolate for a sweeter cookie, or 70% cocoa content if you like things a bit more deeply chocolatey.We use large rolled oats. Quick oats will also work, but the texture will be different.Make sure to use gluten free certified oats if necessary.SubstitutionsIf you don't have tahini, you can substitute peanut butter or another type of nut butter.