Salted Caramel Apple Puff Pastry (Upside-Down Method)

1. Preheat oven to 400 F. Prepare the salted caramel first. In a small saucepan, bring ingredients (coconut milk, sugar, vanilla, sea salt) to a boil. Reduce heat to low, and simmer for about 10 minutes until sauce has thickened and caramelized.
3. Line 1-2 baking sheets with parchment paper. To make a pastry, drizzle some caramel onto the parchment paper, top with about 5 apple slices, and place a piece of puff pastry over the apples. Press down the sides with a fork and poke a few holes into the pastry dough.
4. Transfer to the oven and bake for 15-20 minutes until pastry is golden brown. Remove from oven, and let cool slightly before carefully flipping over with a spatula. Top with powdered sugar, if desired.