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Export 3 ingredients for grocery delivery
Step 1
Grease a 20cm x 30cm rectangular pan; line base and long sides with baking paper, extending paper 5cm over sides.
Step 2
Combine marshmallows and butter in medium saucepan. Stir over medium heat until smooth.
Step 3
Place rice bubbles and half the rainbow chocolate chips in a large bowl. Add marshmallow mixture, mix well. Using wet hand, press mixture firmly into pan, then sprinkle with remaining rainbow chocolate chips. Refrigerate 2 hours or until firm before cutting.