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- Yields: enough frosting for one 13x9-inch cake
- Prep: 20 mins
- In a medium saucepan combine evaporated milk, granulated sugar, and margarine or butter. Cook and stir over medium heat until mixture is boiling; boil 5 minutes, stirring occasionally.
- Remove from heat; add semisweet chocolate pieces, stirring until melted. Add corn syrup; stir until mixed. Use immediately. Makes enough frosting for one 13x9-inch cake.