Try this easy Mars bar slice for a sweet treat that's quick and simple! With just 5 ingredients and no baking needed, it's perfect for a fun kitchen activity with kids. One pot and one baking tin are all you need. The Mars bars' chocolate-nougat-caramel trio, combined with crunchy, chocolatey Coco Pops and a milk chocolate topping, creates a chewy, irresistible delight. Simple to make and even better to eat, this Mars bar traybake is a must-try for any chocolate lover!