Aisling Larkin S’mores Marshmallow & Chocolate Crumble Bars   
Summertime packaged up in the most moreish treat, these S’mores Marshmallow & Chocolate Crumble Bars are like biting into a little piece of happiness – strewn with Nutella ribbons. They are perfect for an afternoon BBQ or picnic, camping snack, or my favourite – served as a fun after-dinner dessert that will totally transport your guests to their most joyful childhood memories. 
Aisling Signature
Aisling Larkin S’mores Marshmallow & Chocolate Crumble Bars   

S’mores Marshmallow & Chocolate Crumble Bars

Print Pin


  • 9 x 9 inch tin


  • 220 g self raising flour
  • 70 g brown sugar
  • 1 tsp baking powder
  • 1/4 tsp salt
  • 120 g butter
  • 1 Egg cracked and whisked
  • 50 g oats


  • 200 g Cadburys chocolate
  • 200 g Nutella chocolate spread
  • 75 g giant marshmallows


  • Preheat the oven to 180 ºC. Weigh and measure ingredients. Line a tin with parchment paper .
  • Pop the flour, baking powder and salt into the bowl.
  • Cut the butter into small cubes. Rub in using your fingers ( Alternatively you can do this in a food processor and pulse ) until it forms fine breadcrumbs.
  • Stir in the sugar.
  • Using a spoon stir in the egg. It will form soft clumps of dough and some finer powdery pieces
  • Take half the mixture and press it into the base of the tin. Pack in firmly and tightly.
  • To make the filling: Spoon the Nutella on top of the base.
  • Pop on the squares of chocolate. Cut the marshmallows in half and place on top.
  • Sprinkle over the remaining half of the topping and scatter the oats on top.
  • Bake for 40 mins.
  • Allow to cool for 1-2 hours before cutting.
  • Store in an airtight container for 2/3 days.