01 -
Get a square 9×9-inch (23×23 cm) baking dish ready with parchment paper fitted inside. Spray lightly with cooking oil or rub a tiny bit of oil all over for a non-stick surface.
02 -
Put 1/2 cup of chilled water into your stand mixer bowl. Sprinkle the gelatin over the water to hydrate it. Wait 5–10 minutes until it turns into a thick gel.
03 -
Take a small pot and mix the white sugar, corn syrup, salt, and the rest of the water (1/4 cup). Stir over medium heat until it all dissolves. Raise the temperature slightly to medium-high and, without stirring, boil until it reads 240°F (115°C) on a candy thermometer.
04 -
Set your mixer on the lowest setting and gently pour the hot syrup into the bloomed gelatin. Once it's all in, slowly increase to the highest speed. Whisk for around 10–12 minutes, or until it’s super fluffy, thick, and less hot. Add your cotton candy extract and some dye drops, blending until the color’s even.
05 -
Scoop the marshmallow mixture into the oiled pan. Flatten the top using a spatula coated with oil to avoid sticking. Leave it out on the counter, uncovered, for about 6–8 hours or even overnight so it firms up.
06 -
Mix the icing sugar and cornstarch in a small bowl. Dust your working area with this mix before flipping the marshmallow slab onto it. Pull off the paper and sprinkle the slab with a bit more of the mix. Use a greased knife or some cookie cutters to create marshmallow squares or fun shapes. Toss the pieces gently in the powder mix to coat them fully.
07 -
Pack them in a sealed container and leave at room temperature for up to 7 days. Share or snack away!