Line a quarter sheet tray with a silicone baking mat.

Add the white chocolate to a bain marie or double boiler. Melt over low heat, stirring gently, until completely melted. Remove from heat.

Portion 3-4 tablespoons of melted chocolate into a small bowl. Tint with pink oil-based food coloring. In a second small bowl, tint 3-4 tablespoons melted chocolate with purple oil-based food coloring.

With a rubber spatula or small stepped palette knife, spread remaining melted white chocolate over prepared tray, forming a rectangle approximately 7 x 8 inches in size. (Do not cover the entire tray, or your chocolate bark will be too thin.)

Drizzle with the pink and purple chocolate.

With a knife, chopstick, or metal skewer, swirl the colors together to create a marble pattern.

Press Sparkling Mythical Creature Cookies into the melted chocolate.

Sprinkle with unicorn sprinkles. Dust with edible glitter.

Allow the tray sit at room temperature until white chocolate sets, about 1-2 hours.

Peel chocolate slab away from silicone mat. Transfer to a chopping board.

With your hands or a sharp chef’s knife, break or cut the slab into smaller pieces.

Store bark in an airtight container at room temperature for up to 3 weeks.