Halloween Mason Jar Cupcakes

  • Author: Aimee Geroux
  • Prep Time: 15 mins
  • Cook Time: 20 mins
  • Total Time: 35 minutes



  1. Preheat your oven to 350 degrees
  2. Prepare your cake mix as per the instructions on the box.
  3. Once your batter is ready divide it equally into three bowls.
  4. Leave one bowl plain white for the mummy cupcakes. Using your Wilton food colouring gel place a small amount of green into one of the bowls and mix well. If not the colour you wish add a small amount at a time as the gel doesn’t require a lot to make the colour bright. The kit I linked above does not come with orange however I made it very easily using the golden and red gels. I prefer the gel vs liquid as it doesn’t thin out your batter or icing.
  5. Place your mason jars on a rimmed baking sheet and fill each mason jar just under 1/2 way, if you fill them anymore they will overflow (like some of mine did). If it happens it’s no big deal you can just scoop out some of the cake once cooked and wipe the rim of the jar with paper towels.
  6. Put in the oven and bake for 20 minutes. Be sure to stay in the kitchen and keep your eye on them as if you over bake them they will turn brown. So as soon as 20 minutes is up or you see them turning brown take them out right away.
  7. Leave them to cool fully for about an hour.
  8. While you are waiting for them to cool you can prepare your frosting. Divide it equally into three bowls. Leave one of them white for the mummy. Using your Wilton food colouring gel place a small amount of black into one for Frankenstein and the other brown for the pumpkin.
  9. When the jars have cooled, decorate the jars and let the glue and ink set for 15 minutes.
  10. Frost the cupcakes using your piping bags (one per colour icing) and desired tip. Then you can garnish with sprinkles if you would like. If gifting them don’t fill with as much frosting so you can put on the lids.


To store them, place lids firmly on and put in your fridge for 2-3 days.