Make the Cupcakes: Preheat the oven to 350°F (175°C), line a cupcake pan, and sift all dry ingredients in a mixer bowl. Whisk wet ingredients separately, combine with dry ingredients, and mix on medium for 2 minutes. Bake cupcakes for 15-20 minutes or until a toothpick comes out clean. Cool completely.
Prepare Buttercream: In a stand mixer, whip butter until smooth, then gradually add confectioner’s sugar. Add cream, vanilla, and whip until fluffy. Divide and color buttercream with green, orange, and black food colorings.
Pipe Mummy: Pipe a black base, then add thin white buttercream lines for bandages. Attach candy eyes.
Make Spider: Pipe ‘L’ shaped legs with black chocolate on parchment and freeze for 5 minutes. Pipe a white base, swirl black for a web, and add brown M&M’s as body and head, then attach legs.
Decorate Pumpkin: Pipe orange bands from bottom to top. Add a green stem and black face.
Create Frankenstein: Pipe a green base, place candy eyes, and add black details for face.
Design Skull: Pipe a white base, then add black facial details for a spooky skull.