Place corn flakes and marshmallows in a large bowl. Melt chocolate chips in a double boiler or in a microwave. Do not overheat or you will cause the chocolate to "break" (separate). Pour into the bowl and stir until everything is evenly coated. Scoop out individual portions with 2 teaspoons or a small ice cream scoop. Place on wax paper-lined cookie sheet and refridgerate until set, 5-10 minutes. Store in covered container.