Preheat the oven to 350°F. Prepare one or two baking trays by lightly oiling (coconut oil recommended). You can just oil two circles where you will be spreading the batter rather than oiling the whole tray. Have a muffin tin handy to place the cookies inside to cool once shaped.
Place the egg whites in a large mixing bowl. Using a mixer, whip the egg whites until they form stiff peaks, about 2-4 minutes on high speed.
Add the melted butter, sugars, vanilla, salt, and gfJules Flour. Mix just until a thick batter forms. It should be similar to vanilla cake batter.
Place a heaping teaspoon of the batter on each oiled spot on the baking tray. Spread the batter into a round that is about 3” in diameter using the back of a spoon or an offset spatula. The rounds should be very thin.
Bake the cookies for 10-12 minutes on the top rack of your oven. The cookies should be generously browned around the edges.
Remove the pan from the oven, and run a thin-edged spatula around each cookie to loosen it from the pan.
Place a fortune in the middle of the cookie circle. Work quickly to fold the circle in half over the fortune, then bend the upper and lower points of the half circle towards each other. Bending the cookie over the lip of a bowl can be helpful.
Place the shaped cookie in a muffin tin to help it harden in the proper shape. Repeat with the other cookie circle.
Repeat steps 4-8 until all the cookies are made. For best results, rotate two or three pans so you don’t have to make new cookie rounds on pans that are hot from the oven. Re-oil each pan before making new cookie rounds on them.
Allow the shaped fortune cookies to cool and harden for 1 hour before serving. Dip in melted chocolate and sprinkle with gluten free sanding sugar or sprinkles, if desired. Store fortune cookies in an airtight container at room temperature.