I love infusing simple ingredients with a playful twist, making these Halloween Brownies my top seasonal favorite. The fudgy, rich base pairs perfectly with the creamy vanilla frosting adorned with an eerie spider web design. They bring suspense and festive flair to any gathering, igniting joyous excitement with every bite.

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I recently stumbled upon this crazy fun recipe for Spider Web Halloween Brownies and I just had to share it with you. I used a 16 oz box of brownie mix (fudge flavor is by far the best) along with 1/3 cup of vegetable oil, 1/2 cup water and 2 large eggs to whip up these brownies that are perfect as a spooky treat.

Once baked, I slather a whole container of vanilla frosting on top and then carefully drag a toothpick across the surface to create a creepy spider web effect. It might look a bit messy at first glance, but trust me, these dessert Halloween brownies are as delicious as they are fun.

I think they are a must try for anyone looking to add a little extra freak to their Halloween party ideas while keeping it simple and tasty. Enjoy the spooky magic in every bite!

Why I Like this Recipe

I like this recipe because it’s super easy to follow. I can just mix the brownie box with a few simple ingredients and it comes out delicious. I don’t have to stress over complicated steps.

I love how fun it is to create the spider web pattern on top. Even if I’m not perfect at it, it still looks cool and adds that spooky touch to my Halloween party treats.

I really appreciate that it’s a quick dessert idea. When I need a tasty treat in a hurry, this recipe never disappoints.

The combination of fudgy brownies with sweet vanilla frosting is just amazing. Every time I make it, I end up eating way more than I planned!

Ingredients

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Brownie mix supplies energy via carbs, sugar, and rich fudge flavor for a tasty treat.
Vegetable oil enriches the mix with healthy fats for extra moist and decadent texture.
Water activates ingredients ensuring your brownie batter bakes evenly and stays perfectly smooth.
Eggs kick in proteins and binding magic to hold all elements together nicely.
Vanilla frosting crowns these brownies with a sweet, creamy layer that satisfies cravings.
A toothpick is all u need for drawing creepy spider web details over the topping.
These ingredients combine for a fun treat that’s both festive and satisfyingly rich.

Ingredient Quantities

1 box (16 oz) brownie mix (fudge flavor works best)

1/3 cup vegetable oil

1/2 cup water

2 large eggs

1 container (16 oz) vanilla frosting

1 toothpick (for drawing the spider web)

How to Make this

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1. Preheat your oven to 350°F and grease a 9×13 inch pan so the brownies dont stick.

2. In a large bowl, mix the entire box of brownie mix with 1/3 cup vegetable oil, 1/2 cup water, and 2 large eggs until there are no dry spots.

3. Pour the batter into your prepared pan and smoothly spread it out.

4. Bake in the preheated oven for about 20 to 25 minutes or until a toothpick inserted into the center comes out mostly clean.

5. Once done, remove from the oven and let the brownies cool completely in the pan.

6. When the brownies are cool, evenly spread the entire container of vanilla frosting over the top.

7. Dip a toothpick in a little extra frosting (or just use the frosting already on top) and start drawing a spiral starting from the center outward.

8. Then, using the toothpick, carefully drag lines from the outside of the circle towards the center to create your spider web pattern.

9. Allow the frosting to set for a few minutes before cutting.

10. Cut the brownies into squares and serve these spooky treats at your Halloween party!

Equipment Needed

1. Oven (preheated to 350°F)
2. 9×13 inch pan (greased so the brownies won’t stick)
3. Large bowl (to mix the brownie batter)
4. Measuring cups (to get the right amounts of oil and water)
5. Mixing tool like a spatula or whisk (to combine ingredients until smooth)
6. Toothpick (for drawing the spider web design)

FAQ

Q: What kind of brownie mix should I use?

A: Use a box of 16 oz brownie mix, preferably fudge flavor as it gives a rich and moist texture that works great for the spooky design.

Q: Can I use a different type of frosting instead of vanilla?

A: Sure, you can experiment with chocolate or even cream cheese frosting if you want a twist, but vanilla is classic for that Halloween vibe.

Q: How do I make the spider web design?

A: After spreading the vanilla frosting on the cooled brownies, use a toothpick to draw a spiral and then drag lines radiating out to form the web. It might take a few tries, so don’t worry about it bein perfect.

Q: Can I make these brownies ahead of time?

A: Yes, you sure can. They keep well in an airtight container at room temperature for a couple of days. For longer storage, pop them in the fridge.

Q: What if my brownies come out too cakey?

A: Cakey brownies can still be fun to decorate. If you prefer fudgy ones, try baking for a slightly shorter time, but keep an eye on them so they don’t underbake.

How To Make Spider Web Halloween Brownies Recipe Substitutions and Variations

You can swap out the vegetable oil for melted butter or canola oil. It gives a richer flavor, but the texture might change a bit
Instead of water, try using milk or even a splash of coffee to bring out a deeper, fudgier taste
If you dont have eggs or want a vegan option, use 1/2 cup of unsweetened applesauce instead of 2 eggs. This might make the brownies a bit cakey
You could use a homemade brownie recipe instead of the box mix if you’re feeling creative and want to control the ingredients
Swap the vanilla frosting with cream cheese frosting for a tangy twist that really complements the chocolate flavor

Pro Tips

1. Make sure to stir the brownie batter just enough to mix everything in, over stirring can make them a little tough and not as fudgy as you want them to be
2. Let the brownies cool completely before you spread the frosting cause if theyre still warm the frosting can melt and make a mess
3. When drawing the spider web use a toothpick dipped in extra frosting so you get a defined line, it might help to practice the pattern first on a plate
4. If the frosting feels too thick to work with, letting it sit at room temperature for a few minutes can help it spread smoother and make the design pop quicker

How To Make Spider Web Halloween Brownies Recipe

Recipe by Tina Bueller

0.0 from 0 votes

Servings

servings

Calories

400

kcal

Equipment: 1. Oven (preheated to 350°F)
2. 9×13 inch pan (greased so the brownies won’t stick)
3. Large bowl (to mix the brownie batter)
4. Measuring cups (to get the right amounts of oil and water)
5. Mixing tool like a spatula or whisk (to combine ingredients until smooth)
6. Toothpick (for drawing the spider web design)

Ingredients

1 box (16 oz) brownie mix (fudge flavor works best)
1/3 cup vegetable oil
1/2 cup water
2 large eggs
1 container (16 oz) vanilla frosting
1 toothpick (for drawing the spider web)

Directions

Preheat your oven to 350°F and grease a 9×13 inch pan so the brownies dont stick.
In a large bowl, mix the entire box of brownie mix with 1/3 cup vegetable oil, 1/2 cup water, and 2 large eggs until there are no dry spots.
Pour the batter into your prepared pan and smoothly spread it out.
Bake in the preheated oven for about 20 to 25 minutes or until a toothpick inserted into the center comes out mostly clean.
Once done, remove from the oven and let the brownies cool completely in the pan.
When the brownies are cool, evenly spread the entire container of vanilla frosting over the top.
Dip a toothpick in a little extra frosting (or just use the frosting already on top) and start drawing a spiral starting from the center outward.
Then, using the toothpick, carefully drag lines from the outside of the circle towards the center to create your spider web pattern.
Allow the frosting to set for a few minutes before cutting.
Cut the brownies into squares and serve these spooky treats at your Halloween party!

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.