Step 1

Separate the egg whites from the egg yolk and set the egg whites aside. Whisk the egg yolk in a medium bowl and set aside.

Step 2

Place the chocolate in a small bowl and melt in the microwave, mixing every 10 seconds until completely melted and smooth, about 30-40s. Set aside to cool.

Step 3

In a separate small bowl, mix the cocoa powder and yogurt until smooth and lump free.

Step 4

Once the melted chocolate is warm, fold in the yogurt mixture until fully incorporated.

Step 5

Fold the chocolate yogurt mixture into the egg yolk. Set aside.

Step 6

Whisk the egg white and stevia in a large bowl until stiff peaks form, about 5 minutes.

Step 7

Gently fold 1/2 of the egg white mixture into the chocolate yogurt mixture. Try not to exceed 10-12 folds.

Step 8

Gently fold in the chocolate yogurt mixture into the remaining egg white mix. Try not to exceed 12 folds.

Step 9

Pour the mousse into two ramekins and allow to set in the fridge for at least 3 hours, overnight is better.