Each Milkybar pot is nothing but yummy white chocolate mousse, always made with delicious ingredients like tasty milk and 100% certified sustainably sourced cocoa. Milkybar White Chocolate Mousse is an indulgent treat for lunchtime, snacking or in the evening!. 70 Calories per pot. Milkybar Mousse does not contain any artificial colours or preservatives. Rainforest Alliance Certified. Find out more at ra.org. Milkybar.