Pour the blended blueberries into a saucepan. Bring to the boil, then remove from the heat and add the gelatine. Mix well. In another bowl, whip the cream and add to the previous mixture. Mix well. Pour over the biscuit and place in the freezer for 10 minutes.
Heat the cream. Mix the egg yolks and sugar and add the boiling cream to the mixture. Return to the heat and thicken. Remove from the heat and add the gelatine and mixed blueberries. Pour into the frame. Place in the freezer.
Place 55g of the blueberries in a saucepan. Bring to the boil, then remove from the heat and add the gelatine. Mix well. In another bowl, whip the very cold liquid cream and add to the previous mixture. Pour over the cream and place in the freezer overnight.
Blueberry jelly 50g blueberries, mixed and strained 15g water 10g caster sugar 2g gelatine
Make a jelly with all the ingredients and pour over the frozen cake.
Chill until defrosted. Carefully remove the frame. Serve whole or cut into individual portions.
I decorated with fresh wild blueberries, mint leaves and a little whipped cream on top.