Prep Your Baking Sheet: Line your baking sheet with parchment paper. This keeps your chocolate bark from sticking and makes clean-up a breeze.
Chop and Melt the Chocolate: Roughly chop the chocolate into small pieces – this helps it melt evenly. Melt your milk chocolate and white chocolate separately. You can use the microwave, heating in 30-second bursts and stirring in between, or melt it over a double boiler, stirring constantly.
Spread the Chocolate: Pour the melted milk chocolate onto your prepared baking sheet, spreading it out into a rectangle about 1/4 inch thick. Drizzle the white chocolate over the milk chocolate in random patterns. Then, with a toothpick or the tip of a knife, swirl the white chocolate into the milk chocolate to create a marbled effect.
Add Toppings: Sprinkle your Valentine’s themed toppings – sprinkles, crushed candies, and dried cranberries – over the chocolate while it's still warm. Gently press larger pieces into the chocolate so they stick. If you're using sea salt, now’s the time to add a light sprinkle.
Let It Set: Allow the chocolate bark to cool and harden. You can leave it at room temperature or speed up the process by placing the baking sheet in the refrigerator.
Break Into Pieces: Once your bark is set and hard, break it into irregular pieces. You can make them as big or as small as you like.
Enjoy or Gift: Serve your Valentine’s Chocolate Bark as a sweet treat, or pack it up as adorable gifts. Just place pieces in a cellophane bag or a cute box, tie it with a ribbon, and you've got a cute homemade Valentine's gift.