Instructions: Whisk together 1 cup coffee and next 4 ingredients in a large heavy saucepan. Cook over medium heat, whisking constantly, 4 to 5 minutes or until smooth and slightly thickened. Gradually add half-and-half; cook, whisking constantly, 4 to 5 minutes or until thoroughly heated (do not boil). Process half of mixture in a blender 1 to 2 minutes or until frothy.

Pour 3 1/2 cups coffee into a 2-quart pitcher; add half of frothy coffee mixture. Repeat procedure with remaining ingredients. Serve immediately, or chill and serve over ice, if desired.

Yield: about 12 cups.

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