01 -
Turn your oven on to 350°F (175°C). Lay some parchment paper on a baking sheet so it's ready to go.
02 -
In one mixing bowl, stir the flour, salt, and baking powder together and leave it aside.
03 -
Use a mixer to blend the softened butter and sugar till it's light and airy.
04 -
Toss in the egg, vanilla, and cotton candy extracts. Stir them in well, then mix the tonic water for a glowing effect.
05 -
Slowly add the dry mix to the wet mix. Don’t overdo it. If you'd like colorful cookies, split the dough and add your food coloring now.
06 -
Form small dough balls, dust them with edible glitter, and put them on the lined baking sheet.
07 -
Pop the cookies into the oven for 10-12 minutes, just till the edges firm up. Let them cool before handling.
08 -
Eat them as is, or turn on a blacklight and watch them glow before you dig in.