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Chocolate Rice Krispie Slice Recipe

rice krispie and marshmallow traybake topped with chocolate
Prep Time15 minutes
Course: Tea time treat
Cuisine: Northern Ireland
Keyword: chocolate crispie buns recipe, chocolate rice krispie slice recipe, marshmallow rice krispies recipe, rice crispy buns, rice krispie buns, rice krispie traybake
Servings: 24

Equipment

  • 1 18cm x 28cm traybake tin or 9" square tin

Ingredients

  • 125 g marshmallows standard size marshmallows are easiest to melt but you can use mini marshmallows, they just need a lot of stirring to melt completely
  • 125 g butter
  • 125 g golden syrup
  • 125 g milk chocolate optional - use if you want a chocolate base otherwise omit for a plain base
  • 200 g rice krispies

To cover

  • 200 g milk chocolate
  • 50 g butter

Instructions

  • Line the tin with non-stick baking paper.
  • Place the marshmallows, butter, syrup (and chocolate if using) in a large microwaveable bowl and heat on full power for 30 seconds. Stir well and return to the microwave for a few seconds if any lumps remain after stirring.
  • Alternatively you can place the ingredients in a large heatproof bowl and heat over a bowl of simmering water. Stir constantly until everything is melted and you have a smooth mixture.
  • Stir in the rice krispies until evenly mixed then press the mixture firmly into the tin. Smooth the top and allow to set if you don't want a chocolate covering.
  • If you are covering with chocolate, you don't need to wait until the mixture is completely set so long as you have pressed it firmly down.
  • Heat the chocolate and butter together until just melted - either in the microwave or over a pan of simmering water as before. Spread evenly over the base with a spatula or palette knife then lift the tray and shake vigorously to smooth out.
  • Allow to set and cut into squares.