Warm milk lukewarm, pour into a mixing bowl, add cream powder and stir briefly. Whisk with the whisk of the hand mixer on the highest setting for about 1 minute. Whip cream until stiff and fold into the cream.
Rinse 4 small moulds (or cups) with cold water. Pour almond paste into the moulds and chill for at least 3-4 hours. Wash and quarter the pear, remove the core. Cut the pear quarters into thin slices.
Bring lemon juice, sugar and 1/8 litre water to the boil. Add pears and blackberries and steam for about 3 minutes. Leave to cool. Loosen almond cream with a knife at the edge and turn out on portion plates.
Spread the pears and blackberries with the juice around the almond brine. Decorate with lemon balm.