Line a baking sheet with parchment paper and set aside.
Microwave white chocolate chips for 2 minutes, stir, and continue microwaving in small increments until fully melted. Divide 1 cup of melted chocolate between two bowls and mix in desired food coloring.
Pour the remaining white melted chocolate into the baking pan. Drizzle the pastel-colored chocolate in top. (Tip: work quickly, as the chocolate will start to harden.)
Add in desired toppings (to keep it looking clean and pretty, try to stick to three) and refrigerate for 30 minutes to harden.