Chop the chocolate coating and coconut oil. Heat the cream. Add couverture, coconut oil and espresso powder and melt. Pour the praline mixture into a bowl and cover directly on the surface with foil. Chill for 2-3 hours. Whisk the mixture with the whisk of the hand mixer for 1/2-1 minute.
Leave to rest briefly (the mixture becomes firmer as it rests). With cool hands, roll into approx. 30 small balls, placing a chocolate mocca bean in the middle of each ball. If the mixture is too soft, refrigerate again. Roll the chocolates in sugar crumbles, place on baking paper and chill for about 2 hours. Store in a cool and dry place
4 1/2 hours waiting time