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4.70 from 13 votes

Easy Rice Bubble Bars Recipe

This 3 Ingredient Rice Bubble Bars recipe is an easy no bake slice recipe to make with your kids! It's the perfect party food idea and also a yummy lunch box treat. Both regular and Thermomix instructions included.
Prep Time10 mins
Chilling Time2 hrs
Total Time2 hrs 10 mins
Course: Dessert, Snacks
Cuisine: Australian, Modern
Keyword: Lunch Box, No Bake Slice, Party Food
Servings: 20 pieces
Calories: 0kcal
Author: Lauren


  • 75 grams butter
  • 200 grams white marshmallows
  • 6 cups rice bubbles or similar
  • 100s & 1000s to decorate optional


  • To begin, line the base and sides of a 20 cm cake tin with baking paper - making sure you leave the paper hanging over the edges.
  • In a large bowl, add the rice bubbles and set aside until needed.
  • Place the butter and marshmallows in a small saucepan and cook over a medium heat stirring occasionally until they have both melted and combined.
  • Pour the melted mixture quickly into the bowl with the rice bubbles, and mix until combined.
  • Pour the combined mixture into a slice tin and use a metal spoon to spread across the tin and push down.
  • Sprinkle 100s and 1000s over the top (optional) and place in the fridge for two hours or until set.
  • Once set, remove the slice from the fridge and cut into small squares.


This slice is best stored in the fridge and enjoyed within 5 days of making.
If you can't find Rice Bubbles, you can use alternatives such as Rice Krispies.
You can also use both pink and white marshmallows for this recipe, if using pink, the slice will have a slight colour to it.
You can also use a 28 x 18cm slice tin for this recipe.


Serving: 0g | Calories: 0kcal | Carbohydrates: 0g | Protein: 0g | Fat: 0g | Saturated Fat: 0g | Polyunsaturated Fat: 0g | Monounsaturated Fat: 0g | Trans Fat: 0g | Cholesterol: 0mg | Sodium: 0mg | Potassium: 0mg | Fiber: 0g | Sugar: 0g | Vitamin A: 0IU | Vitamin C: 0mg | Calcium: 0mg | Iron: 0mg