Preheat the oven to 400F. Line a baking sheet with a silicone baking mat - not parchment paper!
Beat the egg whites and sugar together on medium for a minute, then add the flour, salt, butter, heavy cream, and vanilla. Beat until smooth.
Pour a couple of tablespoons of batter onto the baking sheet and spread out until it is a circle about 5 inches in diameter. Repeat to fit another round on the baking sheet.
Bake for 5 - 7 minutes.
Work quickly! Remove the baking sheet, run an offset spatula under the cookies. Add your fortune cookie to the middle of the cookie. Fold each cookie in half, and then fold to point the two ends of your semi circle together to make the shape of a fortune cookie. You can use the rim of a cup to help make that shape. Place the fortune cookie in a muffin tin to hold its shape.
Repeat with the remaining batter, making only two cookies at a time.
Place the chocolate in a microwave safe bowl and heat on 50% power for 30-second intervals, mixing well between each interval until the chocolate is fully melted.
Dunk the fortune cookies into the chocolate, then leave on a sheet of wax paper to dry.
Melt the peanut butter chips in the same manner as the dark chocolate. Place in a piping bag with a small round point, or in a sandwich bag with a tip cut out and drizzle the peanut butter over the chocolate. Allow to dry.