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1
For the ice cream:
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2
Whisk the cornflour, egg yolks and sugar together.
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3
Heat the milk to just below boiling point.
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4
Pour milk 1/2 cup at a time into the egg mixture, whisking as you pour. Return it to the pan and heat gently, stirring until it has the consistency of thin custard. Remove from heat.
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5
Add the vanilla extract & mix well.
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6
Pour custard into bowl, cover surface with saran wrap & chill thoroughly - several hours.
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7
If using an an ice cream maker, follow manufacturer's instructions.
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8
If you don't have one, freeze the ice cream mixture for 3-4 hours; then beat it thoroughly and return it to the freezer.
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9
Refreeze for a further 2 hours, then stir in the crumble and puree as below.
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10
For the crumble:
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11
Pre-heat the oven to 375u00b0F (190u00b0C).
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12
Rub the sugar, butter, flour and cinnamon together until you have a coarse, quite lumpy crumble.
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13
Spread this on a baking sheet.
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14
Put the blueberries and caster sugar for the puree in a shallow baking dish.
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15
Bake the crumble and the berries for 10 to 15 minutes - until crumble is fragrant & the berries are softened.
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16
Puree & sieve the baked blueberries.
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17
Cool and chill in the refrigerator for 2 hours.
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18
Break up the crumble into pea-sized pieces. Too big = too crunchy, too small = undetectable.
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19
As soon as the ice cream is ready, fold in the crumble.
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20
Loosely fold in the puree, but not too thoroughly - you want ribbon-like streaks running through the ice cream.
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21
Freeze until needed. Crumble ice creams need to have an hour in the refrigerator to become soft enough to scoop before serving.
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22
For the frosted blueberries:
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23
Lightly whisk up the egg white.
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24
Dip each blueberry first in the egg white, then in the caster sugar.
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25
Let them sit on parchment paper for 2 hours to harden up abit before using them as a decoration for the ice cream.