-
Whisk
the egg whites until stiff.
Reserve 45 ml/3 tbsp of the sugar. Whisk half the
remaining sugar into the egg whites and whisk again.
-
Fold in the remaining half. Place small spoonfuls on
a baking (cookie) sheet lined with baking parchment.
-
Bake in a preheated oven at 150°C/300°F/gas
mark 2 for about 1 hour or until pale biscuit-colored
and crisp. Remove from the oven and leave to cool on
a wire rack.
-
Meanwhile, put the egg yolks in a bowl with the
remaining 45 ml/3 tbsp of the sugar. Whisk until
thick and pale. Put the coffee in a measuring jug.
-
Add the evaporated milk and make up to 300 ml/1 1/4 cups with water. Heat gently in a saucepan
until hot but not boiling. Whisk into the egg yolk
mixture.
-
Return to the pan and cook, stirring, until
the custard thickens and coats the back of a wooden
spoon. Do not allow to boil.
-
To test, lift the spoon
out of the mixture and draw a finger across the back
of the spoon: there should be a clear line left.
Leave to cool, stirring occasionally.
-
Whip together the cream and liqueur until peaking
and fold into the coffee custard with a metal spoon.
Turn into a freezer proof container
and freeze for 2 hours or until partly frozen.
-
Whisk
thoroughly with a fork to break up the ice crystals.
Roughly crush the meringues and fold into the
mixture.
-
Spoon into a 1.5 liter/6 cup
ring mould. Freeze until firm. When ready to serve,
dip the base of the mould briefly in hot water, then
turn out on to a serving plate.
-
Fill the centre with
whipped cream, dust with coffee powder and serve
straight away.