Step 1

In a metal bowl whip egg yolks and sugar until fluffy.

Step 2

In a metal bowl over a pan of boiling water on the stove (or use your double boiler) warm 2 cups of cream. (do not boil)

Step 3

Add warm cream in a slow stream to egg mixture, whisking constantly. This is the custard.

Step 4

Set the custard mixture in a metal bowl over boiling water (or use double boiler)

Step 5

Stir custard with a wooden spoon constantly, until thermometer reaches 170 degrees.

Step 6

Remove from the heat and stir in the remaining cup of cream, place in the refrigerator to cool for about an hour.

Step 7

When the custard is cool, add vanilla and grape nuts and pour it into your ice cream maker.

Step 8

Freeze according to your maker’s instructions.

Step 9

Pour into a metal loaf pan, cover, and place in your freezer until frozen.