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.