Harry Potter spider and Basilisk cupcake on a white table
Print Recipe
0 from 0 votes

Easy Harry Potter Themed Cupcakes

These spooky (and cute!) Basilisk and giant spider Harry Potter Themed Cupcakes will make any fan jump for joy (or fear) and make an easy treat for a Harry Potter party.
Prep Time30 mins
Cook Time25 mins
Total Time55 mins
Course: Dessert
Cuisine: American
Servings: 24 cupcakes
Calories: 374kcal
Author: Jade Jones


For cake (if milk, eggs, and oil amounts are different use those called for on box):

  • 1 box chocolate cake mix (can also use yellow)
  • 1 cup milk
  • 3 eggs
  • 1/2 cup melted butter

For chocolate buttercream frosting:

  • 1 cup butter room temperature
  • 2 lbs powdered sugar (about 8 cups)
  • 4 Tbsp milk
  • 2 tsp vanilla
  • 1/4 tsp kosher salt
  • 1/3 cup unsweetened cocoa powder

For decorations

  • 12 Oreos separated and filling scraped out
  • 6 pieces black licorice Twizzlers separated into individual strands and cut in half
  • 14 pieces Brach's Witches teeth candy corns
  • 2 M&Ms yellow
  • 48 small candy eyes


  • Make cake according to package directions.  Allow to cool completely before frosting.

To make frosting:

  • Beat room temperature butter in a stand mixer or with a hand mixer until light and fluffy.  Gradually add powdered sugar to butter, scraping bowl as needed.  Add salt, milk and vanilla. If needed, add more milk to reach spreading consistency.
  • Separate frosting into two batches.  Add green food coloring to one batch and the 1/4 cup cocoa to the other.  Mix each batch well until fully combined.

To decorate the giant spiders:

  • For the spiders, frost 12 cupcakes with chocolate frosting. Stick one Oreo half upright into the back side of the cupcake.  
  • On the other Oreo, use a piping bag and pipe a small line of chocolate frosting along the top. Add 4 small candy eyes.  On the bottom of the Oreo, pipe two vertical lines and add 2 Brach's Witches teeth candy corns.
  • Gently press the spider's head Oreo on to the front half of the cupcake.  Add 4 black licorice Twizzler legs to each side of the cupcake.

For the Basilisk:

  • Line up 12 cupcakes in a snake like shape.  Use the green frosting to frost across the whole row of cupcakes.
  • Use a toothpick to draw snake scales along the body of the snake. To the head of the snake, add 2 yellow M&Ms with the logo side down for eyes and 2 Brach's Witches Teeth candy corns for teeth.


Feel free to use yellow cake mix instead of chocolate if you would like.
The Brach's Witches Teeth candy corns I found at my local JoAnn's store. You can also find them on Amazon.
Black licorice Twizzlers were surprisingly hard to come by. I found black and orange Twizzlers in the Halloween section at Target. You can also find them on Amazon.


Calories: 374kcal | Carbohydrates: 62g | Protein: 3g | Fat: 14g | Saturated Fat: 8g | Cholesterol: 52mg | Sodium: 270mg | Potassium: 58mg | Fiber: 1g | Sugar: 52g | Vitamin A: 405IU | Calcium: 34mg | Iron: 1.6mg