Halloween Slime Cupcakes
Spooky Sweet Treats (Halloween Slime Cupcakes)
Just in time for the spookiest season of the year, these Halloween Slime Cupcakes are the ultimate way to bring a bit of eerie fun into your dessert lineup! Imagine sinking your teeth into a moist vanilla cupcake, mysteriously tinged with black, only to unveil a sweet surprise of zesty lime marmalade waiting inside. Topped with a fluffy, vibrant green buttercream and adorned with googly candy eyes, these cupcakes are not only delightful to eat but also a showstopper for your Halloween festivities! They’ll have everyone saying, “Trick or treat? More like treat, please!”

Why You’ll Love This Recipe
– Big, Bold Flavors: The combination of vanilla, lime, and a splash of creativity makes each bite a flavor explosion!
– Spooktacular Presentation: These cupcakes are as fun to look at as they are to eat, making them perfect for Halloween parties or family gatherings.
– Easy to Make: With just a few steps, you’ll master the art of spooky baking without any ghostly mishaps!
– Kid-Friendly Fun: Let the little ones help with decorating, making this a fantastic way to bond over baking!
Ingredients You’ll Need
Let’s gather our ingredients and get ready to whip up some Halloween magic! The star players here are the black food coloring, which gives the cupcakes their haunting hue, and the zesty lime marmalade that adds an unexpected twist. Grab your mixing bowls and let’s get started!

– 175 g Baking spread (or butter) (softened, unsalted)
– 175 g Caster sugar
– 3 large Eggs
– 2 tsp Vanilla extract
– 175 g Self-raising flour
– 25 g Black food coloring
– 200 g Butter (softened, unsalted)
– 400 g Icing sugar
– 1 tsp Vanilla extract
– 1-2 tbsp Milk
– Green food coloring
– Yellow food coloring
– 150 g Tinned custard
– Candy eyes
– Green sprinkles
Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.
Variations
This recipe is wonderfully versatile, and you can easily customize it to suit your taste or dietary needs! Here are some fun variations to consider:
– Go Gluten-Free: Substitute regular flour with a gluten-free blend to make these cupcakes suitable for everyone!
– Add Extra Protein: Mix in some protein powder to turn your spooky treats into a post-workout snack!
– Make it Spicier: Add a pinch of cayenne or chili powder to your buttercream for a fun, unexpected twist!
– Swap the Dressing: Use different fruit preserves like raspberry or strawberry for a vibrant filling.
– Colorful Additions: Get creative with food coloring! Try different shades for the buttercream to create a multi-colored Halloween masterpiece.
How to Make Halloween Slime Cupcakes
Get your apron on and let’s dive into the fun of making these Halloween Slime Cupcakes!
Step 1: Preheat the Oven
Preheat your oven to 140°C Fan/325°F/Gas Mark 3. Line a cupcake tin with cupcake cases, ideally black ones to keep with the spooky theme.
Step 2: Cream the Butter and Sugar
In a mixing bowl, combine the baking spread and caster sugar. Using an electric mixer, whip them together for about 5 minutes until the mixture is smooth and fluffy.
Step 3: Add Eggs and Vanilla
Crack in the eggs one at a time and add the vanilla extract, whisking well to combine everything into a luscious mixture.
Step 4: Fold in the Flour
Gently fold the self-raising flour into the mixture, being careful not to deflate all that lovely air you’ve whipped in!
Step 5: Mix in the Black Magic
Add the black food coloring to your batter and mix it well, so the cupcakes take on their eerie color.
Step 6: Bake the Cupcakes
Divide the batter evenly among the cupcake cases and pop them into the oven. Bake for 25-30 minutes, or until a skewer inserted into the center comes out clean. Let them cool completely on a wire rack.
Step 7: Core the Cupcakes
Once your cupcakes are cool, use a cupcake corer or a knife to make a hole in the center of each one.
Step 8: Add the Zesty Filling
Take a bit of green food coloring and mix it into the tinned custard. Spoon the vibrant custard into each cupcake.
Step 9: Prepare the Buttercream
In another bowl, mix together the butter and icing sugar until smooth. Add the vanilla extract, milk, and both green and yellow food colorings until you achieve a bright, eye-popping green. If your buttercream is too stiff, add more milk until it’s the perfect consistency.
Step 10: Decorate Your Cupcakes
Using a piping bag (or just a spoon, if you prefer), generously pipe the bright green buttercream onto the cupcakes. Finish off your monstrous creations with candy eyes and sprinkles for a creepy-crawly touch!
Step 11: Store and Enjoy
Pop your spooky cupcakes into an airtight container and keep them in a cool place. Enjoy your creepy creations within three days!
Pro Tips for Making Halloween Slime Cupcakes
– Room Temperature Ingredients: Ensure your butter and eggs are at room temperature for the best texture in your cupcakes.
– Don’t Overmix: Mix just until combined to keep your cupcakes light and fluffy.
– Check for Doneness: Use a skewer or toothpick to check for doneness; it should come out clean when the cupcakes are ready.
– Get Creative with Presentation: Try different piping techniques for your buttercream to give each cupcake its own unique personality!
How to Serve Halloween Slime Cupcakes
Garnishes
Sprinkle some additional green sprinkles or edible glitter on top of your cupcakes for an extra magical touch!
Side Dishes
Pair these spooky treats with a fruity punch or a Halloween-themed snack platter filled with ghostly cheese and crackers.
Creative Ways to Present
Serve them in individual cups or on a spooky-themed platter. You could even use a mini cauldron for a fun twist!
Make Ahead and Storage
Storing Leftovers
Store any leftover cupcakes in an airtight container at room temperature, and enjoy them within three days for the best taste.
Freezing
You can freeze the cupcakes without frosting them. Just place them in an airtight container, and they’ll keep for up to 3 months. Thaw them before frosting and decorating!
Reheating
These cupcakes are best enjoyed at room temperature, so there’s no need to reheat. Just take them out and let the spookiness commence!
FAQs
Can I use a different filling?
Absolutely! Feel free to experiment with other fruit preserves or even chocolate ganache for a different flavor profile.
Is this recipe spicy?
Not at all! These cupcakes are sweet and zesty, perfect for all ages.
How do I make these gluten-free?
Just swap out the self-raising flour for a gluten-free alternative, and you’re good to go!
Can I prepare this in advance?
You can bake the cupcakes ahead of time and freeze them without frosting. Just thaw and decorate when you’re ready to serve!
Final Thoughts
These Halloween Slime Cupcakes are not just a treat for the taste buds, but also a feast for the eyes! With their fun flavors and spooky appearance, they’ll surely become the star of your Halloween celebrations. So gather your ingredients and unleash your inner baker—your friends and family will thank you for these fabulous, frightfully delicious cupcakes! Happy haunting and happy baking! 🎃👻
Halloween Slime Cupcakes
Halloween Slime Cupcakes are a fun and spooky treat perfect for your Halloween celebrations. These moist vanilla cupcakes are tinted black, filled with zesty lime marmalade, and topped with vibrant green vanilla buttercream. Complete with candy eyes and sprinkles, they are sure to delight both kids and adults alike. Get ready to impress your guests with these deliciously eerie cupcakes!
- Prep Time: 45 minutes
- Cook Time: 25 minutes
- Total Time: 1 hour 10 minutes
- Yield: 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: British
Ingredients
- 175 g baking spread (or unsalted butter), softened
- 175 g caster sugar
- 3 large eggs
- 2 tsp vanilla extract
- 175 g self-raising flour
- 25 g black food coloring
- 200 g unsalted butter, softened (for frosting)
- 400 g icing sugar
- 1 tsp vanilla extract (for frosting)
- 1–2 tbsp milk (for frosting)
- Green food coloring
- Yellow food coloring
- 150 g tinned custard
- Candy eyes
- Green sprinkles
Instructions
- Preheat the oven to 140C fan/325F/Gas Mark 3 and line a cupcake tin with black cupcake cases.
- In a bowl, beat the baking spread and caster sugar together until fluffy (about 5 minutes).
- Incorporate the eggs and vanilla extract, mixing well.
- Gently fold in the self-raising flour.
- Add black food coloring and mix until evenly combined.
- Divide the batter into cupcake cases and bake for 25-30 minutes or until a skewer comes out clean. Cool completely on a rack.
- Once cool, core each cupcake and fill with lime-colored custard.
- For the buttercream, beat together softened butter and icing sugar until smooth, then add vanilla, milk, green, and yellow food coloring until bright green.
- Pipe or spread buttercream on top of each cupcake; decorate with candy eyes and green sprinkles.
- Store in an airtight container in a cool place; consume within three days.
Nutrition
- Serving Size: 1 cupcake (approx. 80g)
- Calories: 517 kcal
- Sugar: 54 g
- Sodium: 278 mg
- Fat: 27 g
- Saturated Fat: 11 g
- Unsaturated Fat: 15 g
- Trans Fat: 0 g
- Carbohydrates: 67 g
- Fiber: 1 g
- Protein: 3 g
- Cholesterol: 77 mg