Fit a piping bag with a large star tip. Rest empty piping bag, tip down, in a tall glass. Fold the top edges of the bag halfway down around outside of glass. Paint thick lines of red, orange, yellow, green, blue and purple gel food colouring from the tip to the top of the bag. Fill with white icing. Pipe a swirl on cupcake.
Cupcake decorating ideas: Tie-dye
We’ve whipped up a month’s worth of decorating ideas for our 30th birthday, because we think every day calls for adorable desserts!