Ingredients

For The Cookies

In a medium bowl, whisk flour, sugar, and salt together.
Add egg whites and vanilla, and stir until nice and smooth.
Next, add butter and whisk until combined.
Using a 1 1/2 tsp cookie scoop, drop onto the prepared baking sheet 4 inches apart.
Carefully place in the oven and bake for approximately 5-7 minutes or until the edges start to brown.
Remove from oven, loosen from baking sheet, and wrap the cookie around the end of the spoon using a wooden spoon. Press to seal and hold for 15-20 seconds.
Once set, remove from the end of a wooden spoon and place on a wire rack to cool.
Continue with the remaining cookies. Let cool completely before filling.
Return to oven for 1 minute if cookies become too cool and unable to shape.

For The Banana Mousse

Beat heavy cream at high speed until high peaks form.
Add powdered sugar and beat until soft peaks form and the mixture is light and fluffy.
Fold mixture into mashed bananas.
Stir lemon juice and rum into the mousse mixture.
Cover with plastic wrap and chill.
Fill cookies once cookies have cooled completely, then enjoy