Line a baking sheet with parchment paper or a silicone baking mat to prepare your baking surface.
Coarsely chop your choice of nuts, such as almonds and cashews, for texture.
Place the white chocolate chips in a microwave-safe bowl and heat in 30-second intervals, stirring between each, until fully melted and smooth. Alternatively, melt the chocolate using a double boiler on low heat, stirring continuously.
Stir in the vanilla extract and sea salt into the melted white chocolate to enhance the flavor.
Pour the melted white chocolate onto the prepared baking sheet and spread into an even layer about 1/4 inch thick. Immediately sprinkle the chopped nuts, dried cranberries, and pumpkin seeds evenly on top, pressing down lightly to stick.
Place the baking sheet in the refrigerator for about 30 minutes, or until the chocolate is completely set and firm to the touch.
Break the set bark into irregular pieces using your hands or a knife. Store in an airtight container or package as gifts.