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Frankenstein Cupcakes in a Jar Recipe

4.6 from 136 reviews

These Frankenstein Cupcakes in a Jar are a fun and festive Halloween dessert featuring moist neon green vanilla cupcakes layered with creamy neon purple buttercream and topped with crunchy Frankenstein Rice Krispies treats. Perfect for parties, the cupcakes are baked in a jar for a unique presentation and are piped with silky buttercream frosting to create a spooky yet delicious treat.

Ingredients

Scale

Cupcake Batter

  • 1 box white cake mix (15.25 oz)
  • 3 eggs
  • 1 cup water
  • 1 teaspoon vanilla extract
  • 2 drops neon green gel food coloring

Frankenstein Rice Krispies

  • 16 Frankenstein Rice Krispies treats (prepared according to tutorial)

Buttercream Frosting

  • 2 cups unsalted butter, softened
  • 5 cups powdered sugar
  • 2 teaspoons vanilla extract
  • 12 drops neon purple gel food coloring

Instructions

  1. Preheat Oven and Prepare Pan: Preheat the oven to 350°F (175°C) and line a cupcake pan with cupcake liners to prevent sticking.
  2. Make Cupcake Batter: In a mixing bowl, combine the white cake mix, water, eggs, and 1 teaspoon vanilla extract. Add 2 drops of neon green gel food coloring and mix until well incorporated and vibrant in color.
  3. Bake the Cupcakes: Pour the batter into the cupcake liners, filling each about 3/4 full. Bake for 15-18 minutes or until a toothpick inserted into the center comes out clean. Remove from oven and cool completely on a cooling rack.
  4. Prepare Frankenstein Rice Krispies Treats: While cupcakes cool, prepare the 16 Frankenstein Rice Krispies treats as per the referenced tutorial and set aside to firm up.
  5. Make Buttercream Frosting: In a large bowl, beat the softened butter on medium speed for a few minutes until fluffy. Gradually add powdered sugar while continuing to beat until combined.
  6. Add Flavor and Color: Mix in 2 teaspoons vanilla extract and continue to beat for about 2 minutes until smooth. Add 1-2 drops neon purple gel food coloring and beat for an additional 5 minutes until the frosting is silky and airy.
  7. Prepare Piping Bag: Transfer the frosting to a piping bag fitted with a large piping tip such as Wilton 1M or 2D for decorative swirls.
  8. Assemble Cupcakes in Jars: Slice each cupcake in half horizontally. Place the bottom half of a cupcake into the bottom of a serving jar.
  9. Layer Frosting and Cupcake: Pipe a circle of frosting over the cupcake half, then add the next cupcake half, more frosting, and another cupcake half if desired. Finish by topping with a generous swirl of frosting.
  10. Decorate with Rice Krispies: Insert one Frankenstein Rice Krispies treat pop into the top frosting of each jarred cupcake. Optionally, add Halloween sprinkles for extra festive flair.
  11. Serve and Enjoy: Present these spooky Frankenstein cupcakes in jars at your next party or gathering for a fun and unique Halloween treat.

Notes

  • Ensure cupcakes are completely cooled before assembling to prevent frosting from melting.
  • You can adjust the amount of food coloring to achieve your preferred intensity for the neon green and purple colors.
  • Use gel food coloring for vibrant colors without altering frosting consistency.
  • These cupcakes keep well in the refrigerator sealed for up to 3 days.
  • If you don’t have jars, regular cupcake liners and decorating can be substituted.

Keywords: Halloween cupcakes, Frankenstein cupcakes, cupcakes in a jar, neon frosting, festive desserts, Halloween treats, buttercream frosting, Rice Krispies treats, party dessert