Stuffed with spooky Oreo’s and topped with a chocolate spiderweb, you will love these quick and easy Halloween Rice Krispie Treats!

The Halloween baking continues! So far I’ve shared my easy Skeleton Oreos recipe and these indulgent Spiderweb Caramel Stuffed Brownies. I absolutely LOVE Halloween themed bakes. It’s so fun coming up with spooky ideas that are easy to re-create but look and taste delicious, and these Halloween Rice Krispie Treats are no exception! You only need 6 ingredients, and can knock them up in less than 20 minutes.
Reasons to love these Halloween Rice Krispie Treats
- Crunchy, chewy and chocolatey!
- Stuffed with a layer of spooky Oreos
- No-bake recipe, made with only 6 ingredients
- Takes less than 20 minutes
- The perfect sweet treat for Halloween parties

How to make Halloween Rice Krispie Treats (step-by-step photos & details)
Step 1: Make the Rice Krispie mixture
You’ll start by melting the butter and marshmallows together in a saucepan. Keep the heat low and melt the ingredients slowly, using a spatula or wooden spoon to move them around to prevent the mixture from burning. Top tip: a silicone spatula is best as the marshmallow doesn’t stick as much.
Once that’s done, stir in the Rice Krispies, coating them in the marshmallow mixture.
Step 2: Layer with Oreos
Spoon half the Rice Krispie mixture into the baking tin and press it out into an even layer. At first it will be quite sticky but if you keep pressing it down, after a little while it won’t be as sticky. Now place the Oreos on top, gently pressing them into the mixture.

Step 3: Cover the Oreos with more Rice Krispie mixture
Spoon the remaining Rice Krispie mixture on top of the Oreos and again press it out into an even layer. You’ll want to press gently so not to crack the Oreos underneath, but firm enough that the mixture is firm and solid.

Step 4: Make the spiderweb chocolate topping
You’ll be amazed at how easy the spiderweb chocolate topping is to make. Just pour melted milk chocolate over the Rice Krispies and spread it out to the edges. Then pipe white chocolate spirals on top of the milk chocolate and drag a skewer through the spiral to make a spiderweb.

Equipment & ingredients used for this recipe

Halloween Rice Krispie Treats
Ingredients
For the Rice Krispie layer
- 100 g Unsalted Butter
- 250 g Marshmallows
- 150 g Rice Krispies
- Pinch of Salt
- 12 Oreos you can use either the limited edition spooky Oreos or the normal ones
For the spiderweb chocolate topping
- 300 g Milk chocolate
- 50 g White chocolate
Instructions
Make the Rice Krispie layer
- Line a 8x8inch square baking tin with greaseproof paper.
- Place the butter in a large saucepan and set over a low heat on the hob. Stir with a silicone spatula or wooden spoon until the butter has completely melted.
- Remove the saucepan from the heat and stir in the salt and Rice Krispies, coating them in the mixture. If your saucepan is too small, transfer the mixture into a mixing bowl and then add the Rice Krispies.
- Spoon half the Rice Krispie mixture into the baking tin and press it out into an even layer. At first it will be quite sticky but if you keep pressing it down, after a little while it won't be as sticky.
- Now place the Oreos on top, gently pressing them into the mixture.
- Top with the remaining Rice Krispie mixture and press it out to conceal the Oreos underneath. Set the baking tin aside for now.
Make the spiderweb chocolate topping
- Break up the milk chocolate into one bowl and the white chocolate in another. Melt each chocolate in the microwave in 30-second blasts (stirring after each) until smooth.
- Pour the melted milk chocolate on top of the Rice Krispies.
- Transfer the melted white chocolate into a small piping bag and snip off the end to make a small hole. Pipe different sized spirals on top of the milk chocolate.
- Use a toothpick to drag through the spirals starting from the middle. Leave even spacing between each line to create a spiderweb effect.
- Place in the fridge for 1-2 hours to set the chocolate.
- Let the Rice Krispie Treats sit at room temperature for 30 mins before slicing.
Notes
More Halloween recipes to love
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