Adorable Cauldron Cookies: Easy Halloween Cookie Cups That Bubble

By bethany
10 Min Read
45-degree hero shot of cauldron cookies with green frosting and candy eyeballs.
Bubble and brew cookies that wow any Halloween table.
45-degree hero shot of cauldron cookies with green frosting and candy eyeballs.

Need a fun Halloween treat that looks impressive but takes shortcut smarts? These cauldron cookies start with a cake mix, bake into mini “pots,” and get topped with bright green buttercream, sprinkles, and a pretzel “stirring stick.” They come together fast in one bowl and one pan for maximum spooky-cute payoff.

Don’t miss our garlic parmesan crockpot chicken and potatoes easy cozy dinner.

Why You Will Love It

  • Minimal prep with pantry staples and a boxed cake mix
  • Kid-approved decorating that doubles as a party activity
  • Perfect for make-ahead or freeze-and-finish later
  • Consistent results with clear visual cues and baking times
  • Flexible toppings and colors for any Halloween vibe

Ingredients You Will Need

  • Devil’s Food cake mix: gives rich chocolate flavor and a foolproof cookie base.
  • Eggs: bind and add moisture for a soft, chewy center.
  • Oil: keeps cookies tender and helps them form sturdy “cauldrons.”
  • Black food coloring: deepens the dough color for a cauldron look.
  • Unsalted butter: creamy base for pipeable buttercream that holds shape.
  • Powdered sugar: sweetens and thickens frosting for clean swirls.
  • Vanilla extract: rounds out flavor. Use alcohol-free vanilla for a no-alcohol option.
  • Salt: balances sweetness so frosting tastes grown-up, not cloying.
  • Milk: thins frosting to a smooth, pipeable consistency.
  • Green food coloring: creates that “bubbling potion” hue.
  • Sprinkles and candy eyeballs: instant texture and Halloween character.
  • Pretzel sticks: the cutest edible “stir sticks.”

Substitutions & Add-Ins

  • Gluten-friendly: use a certified gluten-free chocolate cake mix.
  • Dairy-free: swap vegan butter and unsweetened plant milk in frosting.
  • Color swaps: try neon purple or slime-green dough instead of black.
  • Flavor twists: add 1 teaspoon peppermint emulsion or orange bakery emulsion to the frosting.
  • Toppings: mini marshmallows or chopped gummy worms make “foam” and “ingredients.”
  • Less sweet: add 2 tablespoons cocoa powder to the frosting for a darker, less sweet finish.

Step-by-Step Instructions

  1. Preheat and prep: Heat oven to 350°F. Lightly grease three 12-cup mini muffin pans or line with mini paper cups.
  2. Mix the dough: In a large bowl, whisk eggs and oil. Add Devil’s Food cake mix and stir until a thick dough forms. Add a few drops of black gel coloring if using.
  3. Portion: Scoop about 1/2 tablespoon dough into each mini muffin cup. Press gently to flatten so the tops bake level.
  4. Bake: Bake 8 to 10 minutes until edges look set and tops lose their wet shine. Do not overbake to keep centers soft.
  5. Create “cauldrons”: Cool 2 minutes, then use the rounded end of a wooden spoon to press a shallow well into each cookie cup. Transfer to a rack to cool fully.
  6. Make frosting: Beat softened butter until creamy. Gradually mix in powdered sugar, alcohol-free vanilla, and salt. Add milk 1 tablespoon at a time until smooth and pipeable. Tint bright green.
  7. Pipe the potion: Fit a piping bag with a round or open-star tip. Pipe a generous swirl into each well so it looks like bubbling liquid.
  8. Decorate: Add green and Halloween sprinkles, place candy eyeballs, and finish with a halved pretzel stick as the “stirrer.”

Tips for Perfect Results

  • Press dough flat in the pan so cookie cups do not dome.
  • Make the center well while cookies are warm for clean edges.
  • Frosting should hold soft peaks and pipe without sagging.
  • For deep-black dough, start with Devil’s Food and add black gel sparingly.
  • Let cookies cool completely before frosting to prevent melting.
  • Decorate just before serving for the crispest pretzels.
  • Use alcohol-free vanilla to keep the recipe alcohol-free.

Serving Ideas & Variations

  • Party platter: arrange cookies with gummy worms and extra sprinkles for a “witch lab.”
  • Spooky-cute bar: set out bowls of eyeballs, bones, and star sprinkles so guests can decorate.
  • Flavor paths: mint-green potion, citrus-lime potion, or cocoa-fudge frosting for darker “brew.”
  • Kid projects: let kids add eyeballs and “stir sticks” as a craft-meets-treat station.

Storage, Freezing & Reheating

  • Room temp: store decorated cookies in an airtight container up to 3 to 5 days. Separate layers with parchment to protect decorations. Buttercream Parties
  • Freeze: freeze undecorated cups up to 3 months. Decorated cookies also freeze well once frosting is firm and dry to the touch. Wrap airtight with parchment between layers. Thaw in the container at room temp. The Frosted Kitchen+1
  • Make ahead: bake cups 1 to 2 days ahead and frost the day of serving for best crunch on pretzels.

Recipe FAQs

Can I make cauldron cookies with a cake mix?

Yes. Using Devil’s Food cake mix plus eggs and oil makes a sturdy, chewy base that bakes perfectly in mini muffin pans for cookie cups. Semi Homemade Kitchen

How do I get a really dark cauldron color?

Start with Devil’s Food and add a small amount of black gel food coloring to deepen the shade without affecting texture. Semi Homemade Kitchen+1

Can I freeze decorated cauldron cookies?

You can. Once the frosting has crusted or fully set, freeze in airtight layers with parchment for up to 3 months. Thaw in the closed container at room temp. The Frosted Kitchen+1

How far in advance can I make them?

Buttercream-decorated sugar cookies keep at room temp for about 3 to 5 days in an airtight container. For longer storage, freeze and thaw as directed. Buttercream Parties

Conclusion

These cauldron cookies bring big Halloween energy with minimal effort. The cake-mix base keeps things easy, while the bright green buttercream and candy eyeballs make every bite festive. They work for parties, school events, and make-ahead trays because they freeze well and decorate fast. If you try them, leave a comment and a star rating so others can find this recipe. Share your spooky creations on Pinterest or Facebook. Question for you: what color will your “potion” be this year?

45-degree hero shot of cauldron cookies with green frosting and candy eyeballs.

Cauldron Cookies: Easy Halloween Cookie Cups That Bubble

bethany
These spooky Cauldron Cookies are devilishly delightful! Made from a Devil’s Food cake mix, each mini cookie cup bubbles over with green buttercream frosting, colorful Halloween sprinkles, and playful candy eyeballs. Perfect for parties and easy to prep ahead!
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Course Dessert, Snack
Cuisine American
Servings 24 cookies
Calories 160 kcal

Ingredients
  

Cookies

  • 1 box (15.25 oz) Devil’s Food cake mix
  • 2 large eggs
  • 0.5 cup canola or vegetable oil
  • black food coloring optional

Frosting

  • 1 cup unsalted butter softened
  • 3 cups powdered sugar
  • 1 teaspoon vanilla extract use alcohol-free
  • 0.5 teaspoon salt
  • 1-3 tablespoons milk
  • green food coloring

Decorations

  • round green sprinkles
  • Halloween sprinkles
  • candy eyeballs
  • pretzel sticks

Instructions
 

  • Preheat oven to 350°F (175°C) and lightly grease three 12-cup mini muffin pans.
  • Whisk eggs and oil in a large bowl.
  • Add cake mix and stir into a thick dough. Tint with black gel if using.
  • Scoop 1/2 tablespoon dough into each mini muffin cup and press gently to flatten.
  • Bake 8 to 10 minutes until edges are set and tops are no longer shiny.
  • Cool 2 minutes, then press a shallow well into each cookie with a spoon handle. Cool completely.
  • Beat butter until creamy. Mix in powdered sugar, vanilla, and salt. Add milk as needed for smooth, pipeable frosting. Tint bright green.
  • Pipe frosting into each cookie cup, then decorate with sprinkles and candy eyeballs. Add halved pretzel sticks as “stirrers.”

Notes

Use alcohol-free vanilla to keep the recipe alcohol-free.
For darker dough, add black gel food coloring sparingly.
Store airtight at room temp 3 to 5 days or freeze up to 3 months. Thaw in the container.
Keyword cauldron cookie cups, devil’s food cookie, green frosting cookies, Halloween cookies, Halloween party treats

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Hi! I’m Bethany, a recipe creator, food writer, and home cook. Here you’ll find delicious, reliable recipes made with simple, accessible ingredients many inspired by my family kitchen. I share clear instructions, helpful tips, and step-by-step so you can cook confidently at home. Whether you're craving a comforting classic or an easy weeknight favorite, I’m so glad you’re here.
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