Combine first 3 ingredients in a pan. Bring to a boil. Reduce heat and cook for 10 minutes. Place in a blender, process until smooth. Beat the sugar and egg yolks in a bowl until thick about 5 minutes. Heat the milk over medium heat until it reaches 180°. Add 1/3 hot milk mixture to sugar mixture. Stir with a whisk. Gradually add the rest. Cook over medium heat until it coats the back of a spoon. About 4 minutes. Remove from heat.
Stir in blueberry mixture and juice. Pour into a freezer can. Freeze overnight.
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