Prep the pan: Line a baking sheet or 8x10-inch pan with parchment paper. Let the paper overhang for easy lifting.
Melt the white chocolate: Place chopped white chocolate in a microwave-safe bowl.
Microwave in 20–30 second bursts, stirring each time, until smooth. Or melt gently over a double boiler.
Warm the caramel: If your caramel is thick, microwave it for 10–15 seconds to loosen. It should be pourable but not hot.
Spread the base: Pour the melted white chocolate onto the lined pan and spread into an even layer about 1/4 inch thick.
Add caramel swirls: Drizzle the caramel over the chocolate in thin lines.
Use a toothpick or butter knife to gently swirl. Don’t overmix—aim for ribbons and streaks.
Finish with salt: Sprinkle a light pinch of flaky sea salt over the top. This is optional but highly recommended.
Set the bark: Refrigerate for 20–30 minutes, or until fully firm.
Avoid the freezer, which can cause condensation later.
Break into pieces: Lift the bark using the parchment and snap into chunks. Serve immediately or store.