Begin by adding the Terry’s Chocolate Orange, dark chocolate and 150ml double cream to a microwave safe pyrex jug.
Place in the microwave and heat for 30 seconds. Allow to stand for 10 seconds before removing and mixing thoroughly. Do not heat the chocolate and cream mixture for more than 30 seconds at a time.
Repeat twice or until the chocolate has completely melted and combined with the cream. Set aside to cool slightly.
In a separate bowl gently whip the remaining 150ml double cream until soft peaks form. Be very careful not to overwhip or the cream will split.
If using, stir the date syrup into the chocolate mixture.
Add the whipped cream to the chocolate and fold gently until fully combined and smooth.
Transfer the mousse to your glasses, jars or bowls.
Refrigerate for 40 minutes only.
Top with grated dark chocolate or chocolate orange and finish with fresh orange zest. Smooth the tops with a palette knife if you want a clean finish.