Instructions

  1. Lightly beat egg yolk (if using).
  2. Stir in sugar and 1/2 cup of half& half (if not using the egg yolk, just combine the sugar and 1/2 cup of half& half) in a saucepan.
  3. Cook over low heat (or microwave) stirring frequently, until mixture thickens a bit.
  4. Whisk cooked mixture together with remaining ingredients.
  5. Cool and chill mixture for a few hours (1-2 hours).
  6. Pour cold mixture into ice cream machine and process according to manufacturer's directions.