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Homemade Marshmallow Bubble Bars – Sweet Treat

👌Easy🍿Snack🍰Dessert🥬Vegetarian

Ready in

136 mins

Cuisine

Western · Dessert

Prep Time

15 min

Cook Time

1 min

Serving

15 Bars

Calories / Serving

~185 kcal
Recipe by The One Pot Chef on YouTube

Summary

  • Learn how to make classic marshmallow bubble bars, also known as LCMs or Rice Krispie treats. This simple, no-bake recipe combines melted marshmallows and butter with puffed rice cereal, topped with a drizzle of white chocolate and colorful candy-coated chocolate buttons, perfect for lunchboxes or kids' parties.
Adjust servings
Tap an ingredient to mark it ready0 of 5 ready

All Ingredients - Main Ingredients

  1. White Marshmallows 200 grams
  2. Butter 100 grams
  3. Puffed Rice Cereal (Rice Bubbles/Rice Krispies) 5 cups (approx. 225 grams)
  4. White Chocolate 50 grams
  5. Candy Coated Chocolate Buttons (Mini M&Ms) 50 grams

🍳Tools You'll Need

  • Saucepan
  • Microwave
  • Bowl
  • Mixing bowl
  • Spatula
  • Parchment paper

📅Plan Ahead

Up to 2 hrs of hands-off time you can shift to earlier.

  • ⏸️
    Step 5 · Rest2 hrs

    Chill and Serve Place the dish into the fridge for about 2 hours, or until…

🔄Don't have an ingredient? Try these swaps1 tip
  • No Butter?

    • 3/4 the amount of olive oil (for cooking, not baking)
    • Equal parts ghee — Slightly nuttier flavor.
    • Equal parts coconut oil (in baking)

⚠ Contains Allergens

glutendairysoygelatin

Step-by-Step Instructions

Step 1: Melt Marshmallows and Butter

Combine 200 grams of white marshmallows and 100 grams of butter (cut into pieces) in a microwave-safe bowl. Microwave on high for about , stirring every , until the mixture is smooth and melted. If you don't have a microwave, you can gently melt them together in a saucepan over a low heat, stirring continuously.

Step 2: Combine with Puffed Rice Cereal

In a large mixing bowl, add 5 cups (approximately 225 grams) of puffed rice cereal. Pour the melted marshmallow and butter mixture over the cereal and carefully stir until all the rice bubbles are thoroughly coated.

Step 3: Prepare and Press into Dish

Line a large rectangular dish with non-stick baking paper, ensuring there is enough paper on each side to easily lift the mixture out later. Pour the rice bubble mixture into the lined dish and gently press it down with a spatula until it is nice, even, and smooth on top, being careful not to crush the rice bubbles too much.

Step 4: Add Toppings

Drizzle approximately 50 grams of melted white chocolate over the top of the pressed mixture. Then, scatter approximately 50 grams of candy-coated chocolate buttons (such as mini M&Ms) evenly over the white chocolate drizzle.

Step 5: Chill and Serve

Place the dish into the fridge for about , or until everything is chilled and set. Once chilled and set, lift the mixture out of the dish using the baking paper and chop it into individual bars. If making these for lunchbox treats, wrap each individual bar in plastic wrap to keep them fresh and store them in the fridge until required.

Pro Tips

• Ensure baking paper extends over the sides of the dish for easy removal.

• Gently press the mixture into the dish to avoid crushing the rice bubbles.

• Wrap individual bars in plastic wrap to keep them fresh if using as lunchbox treats.

• Keep the bars in the fridge until they are required.

Variations

• Use milk chocolate or dark chocolate instead of white chocolate for the drizzle.

• Replace the candy-coated chocolate buttons with any other candy or sprinkles you like.

🥡Storage & Leftovers

How to keep what you don't finish — pulled straight from the recipe.

  • ❄️
    Refrigerateup to 2 hours

    Place the dish into the fridge for about 2 hours, or until everything is chilled and set.

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