No-Bake Jelly Marshmallow Biscuit Bars (Easy Colorful Fridge Slice)

If you’re craving a fun, nostalgic dessert that’s quick to make and loved by kids and adults alike, these No-Bake Jelly Marshmallow Biscuit Bars are exactly what you need. Made with crushed Marie or Tennis biscuits, fluffy marshmallows, fruity jelly, and melted butter, this refrigerator slice is soft, chewy, and bursting with color and flavor.

It’s one of those classic fridge desserts that comes together in minutes and sets beautifully without turning on the oven. Perfect for parties, school treats, bake sales, or casual family desserts, these jelly biscuit bars are cheerful, affordable, and irresistibly comforting.

This recipe proves once again that simple ingredients can create something truly special.

Why Jelly Marshmallow Biscuit Bars Are So Popular

No-bake slices have been loved for generations because they’re easy, forgiving, and endlessly adaptable. Adding jelly and marshmallows brings playful texture and bright fruity flavor, while biscuits provide structure and melted butter holds everything together.

These bars are especially popular because they’re:

No-bake and beginner-friendly
Made with pantry staples
Quick to assemble
Fun and colorful
Perfect for make-ahead desserts
Easy to slice and share

They’re the kind of treat that disappears fast from dessert tables.

Ingredients

  • 1 packet Marie or Tennis biscuits, crushed
  • 1 cup mini marshmallows
  • 1 packet jelly (any flavor), prepared using only half the recommended water
  • 100 g butter, melted

That’s all you need for soft, fruity fridge bars with chewy marshmallows.

Instructions

Prepare the jelly according to packet instructions, but use only half the recommended amount of water. Set aside to cool until just slightly warm and still liquid.

Line a square baking tin with parchment paper, leaving some overhang for easy removal.

In a large mixing bowl, combine the crushed biscuits and melted butter. Stir until evenly coated.

Add the mini marshmallows and mix gently.

Pour in the cooled jelly and stir carefully until everything is well coated.

Spoon the mixture into the prepared tin and press down firmly using the back of a spoon or spatula to create an even layer.

Refrigerate for at least 2–3 hours, or until fully set.

Once firm, lift out using the parchment paper, slice into bars or squares, and serve chilled.

Texture and Flavor

These Jelly Marshmallow Biscuit Bars are soft yet structured, with tender biscuit pieces, chewy marshmallows, and fruity jelly binding everything together. The butter adds richness while the jelly provides brightness and color.

Each bite offers a mix of creamy, chewy, and slightly crunchy textures with refreshing fruit flavor. They’re sweet without being heavy and perfect for warm days or light desserts.

They slice cleanly once chilled and hold their shape beautifully.

Helpful Tips for Perfect Bars

Let jelly cool slightly before mixing so it doesn’t melt marshmallows.

Press the mixture firmly into the tin for neat slices.

Crush biscuits finely for smoother texture or leave chunks for extra bite.

Use silicone spatula to fold gently and avoid breaking marshmallows.

Allow full chilling time before slicing.

Use a sharp knife wiped clean between cuts for best presentation.

Easy Variations

This recipe is wonderfully flexible. Try one of these fun twists:

Rainbow Jelly Bars
Use layered jelly colors for a party version.

Chocolate Jelly Slice
Drizzle melted chocolate over the top before chilling.

Berry Marshmallow Bars
Use strawberry or raspberry jelly for deeper fruit flavor.

Coconut Jelly Slice
Add desiccated coconut to the biscuit mixture.

Creamy Version
Fold in a few spoonfuls of condensed milk for richer texture.

Each variation uses the same base method while offering a new flavor experience.

Storage and Make-Ahead

No-Bake Jelly Marshmallow Biscuit Bars store beautifully.

Keep in an airtight container in the refrigerator for up to five days.

They also freeze well for up to one month. Thaw overnight in the fridge before serving.

Because they firm up nicely and taste even better chilled, they’re perfect for preparing ahead of parties or busy weeks.

Serving Suggestions

Serve chilled for best texture. These bars pair wonderfully with juice, milk, tea, or coffee and look great on dessert platters.

For extra presentation, dust lightly with powdered sugar or drizzle melted white chocolate before slicing.

They’re ideal for birthday parties, lunchboxes, bake sales, picnics, or casual family desserts.

Why This Recipe Works

The melted butter binds the crushed biscuits, jelly adds moisture and fruity flavor, and marshmallows bring chewiness and sweetness. Using half the water in the jelly ensures the bars set firmly while staying soft.

It’s a simple balance of creamy, chewy, fruity goodness with reliable results every time.

Minimal ingredients. Minimal effort. Maximum fun.

A Playful No-Bake Classic

No-Bake Jelly Marshmallow Biscuit Bars prove that you don’t need complicated techniques or fancy ingredients to create something joyful and delicious. With just four pantry staples and a refrigerator, you can make a colorful dessert that feels homemade and nostalgic.

Whether you’re baking for kids, guests, or yourself, these fridge bars deliver comfort and sweetness in every bite.

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  • Author: Lara

Ingredients

Scale

  • 1 packet Marie or Tennis biscuits, crushed
  • 1 cup mini marshmallows
  • 1 packet jelly (any flavor), prepared using only half the recommended water
  • 100 g butter, melted

Instructions

Prepare the jelly according to packet instructions, but use only half the recommended amount of water. Set aside to cool until just slightly warm and still liquid.

Line a square baking tin with parchment paper, leaving some overhang for easy removal.

In a large mixing bowl, combine the crushed biscuits and melted butter. Stir until evenly coated.

Add the mini marshmallows and mix gently.

Pour in the cooled jelly and stir carefully until everything is well coated.

Spoon the mixture into the prepared tin and press down firmly using the back of a spoon or spatula to create an even layer.

Refrigerate for at least 2–3 hours, or until fully set.

 

Once firm, lift out using the parchment paper, slice into bars or squares, and serve chilled.

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