Sigh

Preheat the oven to 400°F (200°C) for 20 minutes

In a small saucepan, combine the egg whites and confectioner's sugar

Place over low heat, stirring constantly until the confectioner's sugar has dissolved and the egg whites are warm but not cooked

Remove from heat

In a stand mixer, combine the egg white mixture, yeast, and beat until stiff peaks form

Pipe the meringue onto a parchment-lined baking sheet in large dollops, leaving about 2 cm of space between each

Bake at 400°F (200°C) for 10 minutes

Reduce oven temperature to 150°C and let cool completely with the door slightly ajar

Yield: approximately 100 pieces

Each piece contains 15 calories.