In a medium sized bowl combine cocoa powder and powdered sugar.
Gradually add (about 1/4 cup at a time) 1 cup of the heavy cream to the cocoa powder mixture until you get a thick batter/paste. Make sure to work out the lumps.
Add the remaining 1 cup heavy cream using a mixer on low speed. Once all of the cream is combined, turn the mixer to high speed and whip until soft peaks form, just like whipped cream.
To serve, place a few berries in the bottom of 4 serving bowls or glasses. I like to use clear wine or martini glasses. Pour 2 Tablespoons of Chambord on top of the berries in each glass. Divide the Easy Chocolate Mousse evenly into each glass. Garnish with more berries, shaved chocolate, chocolate syrup or any way you’d like.