Combine the cherries, sugar and cornstarch in a saucepan. Cook over low heat
until thickened. Cool.
Meanwhile, use an electric mixer or food processor to combine the lemon zest,
vanilla extract, cream cheese and sour cream.
With the machine running, slowing
mix in the confectioners' sugar.
To assemble the parfaits: Fill each of 4 parfait glasses with the layers, starting
with a spoonful of the cream- cheese mixture, then the chocolate wafer crumbs, followed
by a layer of the cherries. Continue the pattern, using the remaining ingredients.
Refrigerate for at least 30 minutes, or make up to a day in advance.
Makes 4 servings.
Nutritional analysis for each serving: 479 calories, 10 g protein, 66 g carbohydrates,
3 g fiber, 21 g fat, 12 g saturated fat, 63 mg cholesterol, 375 mg sodium