Melt the butter and syrup in a saucepan, stir in the cocoa powder, and remove from the heat. Fold in the confectioners’ sugar, cranberries, and cornflakes. Carefully combine until everything is coated with the butter mixture, but not wet. If necessary, add more cornflakes.
Line a baking sheet that’s small enough to fit in your fridge with parchment paper.
Use two spoons to form