Glow in the Dark Buttercream


Photo by Recipe Snobs

When you were a kid do you remember being afraid of the dark, so much so that you had to sleep with a nightlight on? Well the main problem about fearing the dark isn’t the dark itself – it’s what’s in the dark that causes the nightmares. Keep the ghouls and goblins at bay this Halloween with this amazing recipe for glow in the dark buttercream icing, shared by Craftsy and Recipe Snobs amongst others.

Basically, this recipe is like a normal buttercream icing, but with a slight candied glaze on top that will glow under black or neon light. It’s completely safe, and is actually a component in the tonic water called quinine that is the perpetrator of the glow.


1 cup softened butter

1 teaspoon vanilla extract

5 tablespoons tonic water

6 – 8 cups icing sugar

Food colouring (green, orange or purple glow well!)

3 Packets of Jell -O or Airplane Jelly mix

1 cup boiling water

1 cup chilled tonic water


Photo by Recipe Snobs


1. In a bowl, cream the butter on medium speed until light and fluffy. Stir in the vanilla extract, 5 tablespoons of tonic water and 4 cups of the icing sugar and mix until combined.

2. Add the remaining icing sugar, 1 cup at a time until you happy with the consistency and taste and it is appropriate for piping. Stir in the food colouring for your cupcakes’ icing and set aside.

3. Ice your cupcakes with the coloured buttercream and set it in the fridge for an hour so that the buttercream becomes firm.

4. Begin the preparation for the glow in the dark glaze. Place the jelly powder into a bowl and add 1 cup of boiling water to the mix. Whisk for one minute or until combined.

5. Add the chilled cup of water and continue whisking and the mixture is combined. Leave the jelly to cool, but make sure that it is still liquid and hasn’t begun to set.

6. Remove your cupcakes from the fridge once firm and take a pastry brush to the jelly. Brush the jelly onto the buttercream icing, or dip the whole cupcake in if you want.  You want to dip the cupcake at least six times each to garner an even coating.

7. Place the cupcakes into the fridge for 15 minutes so that the jelly can set. Then, serve your treats under a couple of black lights, making sure they are close to the light and watch it glow, glow, glow!

So there you have it, some very simple steps for making glow in the dark buttercream. Let me know if you use this recipe at home and email me at I am keen to hear how yours turned out!

2 thoughts on “Glow in the Dark Buttercream

  1. Pingback: 5 Ways To Use Neon | The Party Connection | Your liaison to unique occasions

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