In a microwave-safe bowl, microwave white chocolate 30 seconds. Stir, then return to microwave for an additional 30 seconds and gently stir white chocolate until completely melted.
Immediately mix in half-and-half, orange zest, salt, vanilla, nutmeg, 1/3 cup dried cranberries, and 1/3 cup toasted pecans into white chocolate until combined. Immediately spread white chocolate mixture out to 1/2-in thickness on parchment paper. Immediately sprinkle remaining cranberries and pecans on top, pressing to adhere. Sprinkle with additional orange zest if desired.
Refrigerate bark 1 hour until completely firm. Remove from fridge and break into bite-sized pieces. Store in an air-tight container at room temperature until ready to serve. Enjoy!