1 (17.9 ounce) package citrus flavored Jell-O
1 tablespoon margarine
6 cups candy-coated chocolate lollipops
3 egg whites
1 teaspoon instant chocolate pudding mix
1 teaspoon vanilla extract
1/2 cup softened cocoa powder
2 teaspoons distilled white vinegar
1/2 cup evaporated milk
1 1/2 cups cornflakes cereal