Make a custard with the yolks and milk; add the sugar.
LEMON ICE
1 quart water.
4 lemons.
2½ cups sugar.
1 orange.
Boil the sugar and water for ten minutes; strain it and add the juice of the lemons and orange; cool and freeze.
ORANGE ICE
1 quart water.
6 oranges.
1 lemon.
2½ cups sugar.
Prepare exactly as you did Lemon Ice.
STRAWBERRY ICE
1 quart water.
2½ cups sugar.
1½ cups strawberry juice, strained.
Prepare like Lemon Ice.