I love making quirky treats and these Rice Krispie Treat Monsters are a delightful twist for Halloween. I mixed unsalted butter, mini marshmallows, and Rice Krispies with a touch of green food coloring and candy eyes. They instantly became my go-to Halloween Rice Krispy Treats Ideas for fun and playful surprises.

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I’ve gotta tell you about this recipe for Rice Krispie Treat Monsters. They are SO EASY to make and they look totally adorable.

I mixed 3 tbsp of unsalted butter with 4 cups of mini marshmallows until everything melted into a gooey, sweet mix, and then tossed in 6 cups of Rice Krispies cereal. I even added 2-3 drops of green food coloring gel to give them that unmistakable monster look.

The best part was decorating them with 16 candy eyes that make each one look like a mischievous creature straight out of a Halloween fantasy. I can’t remember if it was for a small gathering or a fun school project but these treats have been a hit at every Halloween party I’ve been to.

They’re perfect for a spooky pre K treat or even as a quirky snack for an aesthetic Halloween birthday party. Enjoy making them and get ready for a scream!

Why I Like this Recipe

I love this recipe cause it’s super easy to make and doesn’t take ages to whip up, which is awesome on busy days. I also enjoy how I can get creative with the monster look – adding that green food coloring and candy eyes just gives it a unique, fun twist every time. Plus, I like how the mix of crispy Rice Krispies and melted marshmallows makes the treats both crunchy and sweet, reminding me of childhood snacks. And honestly, making them always puts me in a good mood because they’re so playful and fun to share with friends.

Ingredients

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This unsalted butter adds richness, smooth texture and enhances flavor in a delicate, melt in the mouth mix.
These mini marshmallows melt perfectly providing sweetness and binding the crispy rice together.
The Rice Krispies cereal supplies light carbohydrates for energy while giving an irresistible crunch.
The green food coloring gel is an optional twist that turns treats into fun, spooky monsters.
Candy eyes are a quirky garnish, bringing personality and a playful vibe to each treat.
Together these ingredients form a fun, easy treat that adds a festive twist to any party.
Each ingredient plays its role in making these treats irresistibly cheerful and a nostalgic snack.

Ingredient Quantities

3 tbsp unsalted butter

4 cups mini marshmallows

6 cups Rice Krispies cereal

2-3 drops green food coloring gel (optional for the monster look)

16 candy eyes for decorating

How to Make this

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1. Begin by lightly buttering your baking pan and lining it with parchment paper so your treats dont stick.

2. Melt the 3 tbsp of unsalted butter in a large saucepan over a medium-low heat.

3. Once the butter is melted, add the 4 cups of mini marshmallows and stir constantly till they melt completely.

4. If you want that scary green monster look, add 2-3 drops of green food coloring gel into the melted mix and stir well.

5. Remove the saucepan from the heat and quickly mix in the 6 cups of Rice Krispies cereal until every piece is evenly coated.

6. Pour the mixture into your prepped pan and press it down gently with a spatula to create an even layer.

7. Allow the mixture to cool a little, so it’s easier to handle without burning your fingers.

8. Once it’s slightly cooled but still soft, cut it into squares or shape them with your hands into little monster forms.

9. Press the 16 candy eyes into each treat to form fun and silly monster faces, making sure they stick in well.

10. Let the treats fully cool and firm up before serving, then enjoy your adorable and easy Rice Krispie Treat Monsters!

Equipment Needed

1. Baking pan – you’ll need one large enough to fit the whole treat mix, prepped with butter and parchment paper.
2. Parchment paper – to line the pan so your treats dont stick.
3. Large saucepan – for melting the butter and marshmallows over medium-low heat.
4. Stovetop – to heat your ingredients in the saucepan.
5. Measuring cups and spoons – to accurately measure out the marshmallows, butter, and food coloring.
6. Wooden spoon – ideal for stirring constantly to melt the marshmallows completely.
7. Spatula – to press the mixture down evenly in your pan once it’s poured out.
8. Knife – for cutting the cooled mixture into squares or shaping them into monster forms.

FAQ

Q: How do I mix all the ingredients together?

A: First, melt the butter with the mini marshmallows in a large pan, stir constantly so it doesnt burn then mix in the cereal and food coloring if using. Just stir until well combined.

Q: Is green food coloring necessary?

A: No its optional but without it the treats will lack that fun monster look. Use 2 or 3 drops if you want a slightly spooky effect.

Q: Can I use regular marshmallows instead of mini marshmallows?

A: Sure you can but regular marshmallows may take a bit longer to melt evenly. I recommend mini marshmallows for a smoother mix.

Q: How long should I let the treats set?

A: Once you press in candy eyes for decorating, let the mixture sit for about 15 minutes at room temperature. This gives time to firm up before cutting and serving.

Q: How do I attach the candy eyes?

A: After pressing the mixture into your pan, gently press the candy eyes into the surface. They stick well once the treats begin to cool down.

Rice Krispie Treat Monsters Recipe Substitutions and Variations

Instead of unsalted butter, you can use unsalted margarine or coconut oil if you want a slightly different flavor.
If you don’t have mini marshmallows, try using regular marshmallows and chopping them up after melting.
You can swap Rice Krispies with another crispy rice cereal like puffed rice for a similar crunchy texture.
Don’t have green food coloring gel? Use a tiny bit of liquid food coloring instead, adding drop by drop until you get the monster look.
If you’re out of candy eyes, you can try small round chocolate chips or even sprinkles as a fun decoration.

Pro Tips

1. Always keep the heat low when you melt the butter and marshmallows, cause if it gets too hot, the marshmallows can burn and you’ll end up with a weird, burnt taste.
2. Try not to rush the stirring part once the marshmallows are melting completely – a slow, steady stir makes sure all your Rice Krispies get coated evenly and your treats turn out just right.
3. If you’re adding the green food coloring, add it drop by drop and stir well in between, since too much can give you a gross flavor or a color that doesn’t really look natural.
4. Once you mix in the cereal, work fast but carefully when pressing the mixture into the pan; if you wait too long or press too hard, the treats might end up too dense or stick to your spatula.

Rice Krispie Treat Monsters Recipe

Recipe by Tina Bueller

0.0 from 0 votes

Servings

servings

Calories

kcal

Equipment: 1. Baking pan – you’ll need one large enough to fit the whole treat mix, prepped with butter and parchment paper.
2. Parchment paper – to line the pan so your treats dont stick.
3. Large saucepan – for melting the butter and marshmallows over medium-low heat.
4. Stovetop – to heat your ingredients in the saucepan.
5. Measuring cups and spoons – to accurately measure out the marshmallows, butter, and food coloring.
6. Wooden spoon – ideal for stirring constantly to melt the marshmallows completely.
7. Spatula – to press the mixture down evenly in your pan once it’s poured out.
8. Knife – for cutting the cooled mixture into squares or shaping them into monster forms.

Ingredients

3 tbsp unsalted butter
4 cups mini marshmallows
6 cups Rice Krispies cereal
2-3 drops green food coloring gel (optional for the monster look)
16 candy eyes for decorating

Directions

Begin by lightly buttering your baking pan and lining it with parchment paper so your treats dont stick.
Melt the 3 tbsp of unsalted butter in a large saucepan over a medium-low heat.
Once the butter is melted, add the 4 cups of mini marshmallows and stir constantly till they melt completely.
If you want that scary green monster look, add 2-3 drops of green food coloring gel into the melted mix and stir well.
Remove the saucepan from the heat and quickly mix in the 6 cups of Rice Krispies cereal until every piece is evenly coated.
Pour the mixture into your prepped pan and press it down gently with a spatula to create an even layer.
Allow the mixture to cool a little, so it's easier to handle without burning your fingers.
Once it’s slightly cooled but still soft, cut it into squares or shape them with your hands into little monster forms.
Press the 16 candy eyes into each treat to form fun and silly monster faces, making sure they stick in well.
Let the treats fully cool and firm up before serving, then enjoy your adorable and easy Rice Krispie Treat Monsters!

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.