Witches Brew Halloween Cake Jars

When Halloween rolls around, I love bringing a bit of magic into the kitchen, and this year, I decided to create something truly enchanting: Witches Brew Halloween Cake Jars. I remember the first time I tried layering chocolate cake with bright green buttercream—it felt like making a potion, except this one was sweet, delicious, and completely edible! Each jar becomes its own little world of fun, from the rich chocolate base to the whimsical fondant witch legs peeking out on top. Honestly, seeing them all lined up on my kitchen counter instantly lifted my spirits and made me excited to share them with friends and family.

Why You’ll Love This Recipe
There are so many reasons to love these Halloween cake jars. First, they’re visually stunning and perfectly festive, making them ideal for parties or trick-or-treat gifts. The combination of chocolate and buttery green frosting is irresistible, and the sprinkles add that extra pop of fun. Beyond the taste, I love how creative this recipe allows me to get. You can decorate each jar differently, giving each one its own personality.

Versatile
Even though these jars are designed for Halloween, their versatility is a huge plus. You can change the frosting colors for birthdays, themed parties, or any celebration that calls for a bit of whimsy. The concept of layered cake jars works with almost any flavor combination, so feel free to experiment with different cakes and buttercream flavors.

Budget-Friendly
Despite looking so intricate, this recipe is surprisingly budget-friendly. Most ingredients are pantry staples like flour, sugar, butter, and eggs. The fondant and sprinkles are optional touches for decoration, and even with them, the cost per jar is very reasonable. Making these at home is far cheaper than buying fancy themed desserts from a bakery.

Ingredients for Witches Brew Halloween Cake Jars

  • 330 g self-raising flour

  • 360 g granulated sugar

  • 360 g butter

  • 6 eggs

  • 30 g unsweetened black cocoa powder

  • 1½ tsp baking powder

  • ½ tsp salt

  • 90 ml milk

  • 2 tsp vanilla extract

  • 400 g butter (salted)

  • 800 g powdered sugar (icing sugar)

  • 1¼ tsp vanilla extract

  • 2 tbsp milk or cream (optional, if buttercream is too stiff)

  • Electric green food coloring (a few drops)

  • 250 g orange fondant

  • 200 g black fondant

  • 1 tbsp CMC powder

  • Sprinkles

This mix of ingredients promises a delightful, spooky, and fun treat that will impress kids and adults alike, making your Halloween celebrations truly magical.

How to Make Witches Brew Halloween Cake Jars

When I first decided to make these cake jars, I knew that layering chocolate cake with vibrant green buttercream would be the highlight. The process might seem detailed at first, but once you break it down, it’s quick, easy, and actually fun. Follow my step-by-step instructions to create your own magical Halloween treats.

Step-by-Step Instructions for Making Witches Brew Halloween Cake Jars

1. Prepare Your Ingredients and Oven
First, preheat your oven to 180°C (350°F). I always like to have all my ingredients measured and ready before starting, because it makes the process much smoother. Grease your baking tray or line it with parchment paper to prevent the chocolate cake from sticking.

2. Make the Chocolate Cake Batter
In a large mixing bowl, cream 360 g butter with 360 g sugar until the mixture is light and fluffy. Gradually add six eggs, one at a time, making sure each is fully incorporated before adding the next. Then, sift together 330 g self-raising flour, 30 g unsweetened black cocoa powder, 1½ tsp baking powder, and ½ tsp salt. Slowly fold the dry ingredients into the wet mixture, alternating with 90 ml milk. Finally, stir in 2 tsp vanilla extract. The batter should be smooth and slightly thick.

3. Bake the Chocolate Cake
Pour the batter into your prepared cake pan and spread it evenly. Bake for 50 minutes, or until a toothpick inserted into the center comes out clean. Once baked, let the cake cool completely on a wire rack. Cooling is essential because adding frosting to warm cake will melt it and ruin the layers.

4. Prepare the Green Buttercream
While the cake is cooling, make the electric green buttercream. In a large bowl, beat 400 g salted butter until creamy. Gradually add 800 g powdered sugar, continuing to beat until smooth. Mix in 1¼ tsp vanilla extract and 2 tbsp milk or cream, only if needed, to achieve a spreadable consistency. Finally, add a few drops of electric green food coloring until you reach the desired vibrant green shade.

5. Assemble the Cake Jars
Cut the cooled chocolate cake into small pieces that fit into your jars. Start with a layer of cake at the bottom, then add a generous layer of green buttercream. Repeat until the jar is filled, leaving about 1 cm from the top for decoration. Smooth the top layer with a spatula for a clean finish.

6. Decorate with Fondant and Sprinkles
Roll out 250 g orange fondant and 200 g black fondant. Using CMC powder, shape tiny witch legs or other fun decorations. Place these carefully on top of each jar, and sprinkle colorful Halloween-themed sprinkles over the buttercream. This step makes each jar festive, whimsical, and perfect for party displays.

Quick and Easy Tips

  • Use pre-colored fondant or pre-made decorations to save time.

  • Frosting the jars is easier if the buttercream is at room temperature.

  • Layering small cake pieces instead of crumbling large chunks makes the jars look neat.

Customizable Options
You can experiment with other colors or flavors. For example, replace the green buttercream with purple or orange for a different theme. Chocolate cake can be substituted with vanilla or red velvet if you prefer a lighter flavor.

Crowd-Pleasing Factor
These jars are always a hit because they combine rich chocolate, sweet frosting, and playful decorations. Kids love them, and adults can’t resist the fun presentation. They also make fantastic gifts or party favors, and you can prepare them a day ahead to save time on the day of your event.

By following these steps carefully, you’ll create Witches Brew Halloween Cake Jars that are visually stunning, deliciously sweet, and perfectly spooky for Halloween celebrations.

FAQs for Witches Brew Halloween Cake Jars

1. Can I make these cake jars ahead of time?
Absolutely! You can assemble the jars a day before serving and store them in the refrigerator. Just make sure to cover them with lids or plastic wrap to keep the buttercream fresh.

2. Can I use a different type of cake?
Yes, feel free to substitute the chocolate cake with vanilla, red velvet, or even a pumpkin-flavored cake for extra Halloween vibes. Just adjust baking times as needed.

3. How do I keep the buttercream from melting?
Keep the buttercream at room temperature before frosting and avoid applying it on warm cake. If your kitchen is warm, refrigerate the jars after assembling for at least 30 minutes to set the layers.

4. Can I make the decorations in advance?
Yes, fondant decorations like witch legs can be made a few days ahead. Store them in an airtight container at room temperature to prevent drying out.

5. Are these jars suitable for parties with kids?
Definitely! They are colorful, fun, and easy for kids to enjoy without making a mess. You can also customize decorations to match your party theme.

6. How long do the jars last?
Stored in the refrigerator, these cake jars stay fresh for up to 3–4 days. Bring them to room temperature for 10–15 minutes before serving for the best taste and texture.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Witches Brew Halloween Cake Jars

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Bring a touch of magic to your Halloween with these Witches Brew Cake Jars. Layers of rich chocolate cake and vibrant green buttercream are topped with whimsical fondant witch legs and sprinkles. Perfect for parties, gifts, or a fun treat at home.

  • Total Time: 150 minutes
  • Yield: 9 jars 1x

Ingredients

Scale

For the Chocolate Cake:

  • 330 g self-raising flour

  • 360 g granulated sugar

  • 360 g butter

  • 6 eggs

  • 30 g unsweetened black cocoa powder

  • 1½ tsp baking powder

  • ½ tsp salt

  • 90 ml milk

  • 2 tsp vanilla extract

For the Buttercream:

  • 400 g butter (salted)

  • 800 g powdered sugar (icing sugar)

  • 1¼ tsp Vanilla Extract (Alcohol-Free)

  • 2 tbsp milk or cream (optional, if buttercream is too stiff)

  • Electric green food coloring (a few drops)

For Decorations:

  • 250 g orange fondant

  • 200 g black fondant

  • 1 tbsp CMC powder

  • Sprinkles

Instructions

  • Preheat oven to 180°C (350°F) and grease or line your cake pan.

  • Cream 360 g butter with 360 g sugar until light and fluffy.

  • Add eggs one at a time, mixing fully before adding the next.

  • Sift together 330 g self-raising flour, 30 g cocoa, 1½ tsp baking powder, ½ tsp salt.

  • Fold dry ingredients into the wet mixture, alternating with 90 ml milk.

  • Stir in 2 tsp vanilla extract until smooth.

  • Pour batter into pan and bake 50 minutes or until a toothpick comes out clean. Cool completely.

  • For buttercream: Beat 400 g butter until creamy. Gradually add 800 g powdered sugar, then 1¼ tsp Vanilla Extract (Alcohol-Free). Mix in milk if needed and add green food coloring.

  • Cut cooled cake into pieces for jars. Layer cake and buttercream in jars, leaving 1 cm at the top.

  • Roll fondant with CMC powder to create witch legs or decorations. Place on top and sprinkle with sprinkles.

  • Refrigerate if necessary, and serve at room temperature.

Notes

  • Use cake scraps to fill jars evenly.

  • Buttercream consistency is key; adjust with milk if too stiff.

  • Decorations can be made ahead and stored in an airtight container.

  • Author: Layla
  • Prep Time: 20 minutes
  • Cook Time: 50 minutes

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star