There are much quicker ways of making caramel than boiling the tin, I have personally used the oven and microwave method with great success. The only reason I can see for boiling the can is to do more than one at at time so that you have some on hand in your cupboard.
Here are the recommendations from the Eagle brand website (when I used the microwave method I put the milk in a 8" square pyrex dish, cooks quicker than if you put it in a measuring cup):
OVEN METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into a 9-inch pie plate. Cover with aluminum foil; place in larger shallow pan. Fill larger pan with hot water. Bake at 425° for 1 1/2 hours or until thick and caramel-colored.
STOVETOP METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into top of double boiler; place over boiling water. Over low heat, simmer 1 to 1 1/2 hours or until thick and caramel-colored. Beat until smooth.
MICROWAVE METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into 2-quart glass measuring cup. Cook on 50% power (medium) 4 minutes, stirring briskly every 2 minutes until smooth. Cook on 30% power (medium-low) 20 to 26 minutes or until very thick and caramel-colored, stirring briskly every 4 minutes during the first 16 minutes and every 2 minutes for the last 4 to 10 minutes. Make sure to use potholders when removing the glass measuring cup from the microwave, as it will be hot.
CAUTION: DO NOT HEAT IN CAN.
Here are the recommendations from the Eagle brand website (when I used the microwave method I put the milk in a 8" square pyrex dish, cooks quicker than if you put it in a measuring cup):
OVEN METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into a 9-inch pie plate. Cover with aluminum foil; place in larger shallow pan. Fill larger pan with hot water. Bake at 425° for 1 1/2 hours or until thick and caramel-colored.
STOVETOP METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into top of double boiler; place over boiling water. Over low heat, simmer 1 to 1 1/2 hours or until thick and caramel-colored. Beat until smooth.
MICROWAVE METHOD: Pour 1 can Eagle Brand Sweetened Condensed Milk into 2-quart glass measuring cup. Cook on 50% power (medium) 4 minutes, stirring briskly every 2 minutes until smooth. Cook on 30% power (medium-low) 20 to 26 minutes or until very thick and caramel-colored, stirring briskly every 4 minutes during the first 16 minutes and every 2 minutes for the last 4 to 10 minutes. Make sure to use potholders when removing the glass measuring cup from the microwave, as it will be hot.
CAUTION: DO NOT HEAT IN CAN.
"Butter vs. margarine? I trust cows over scientists." Unknown
"Butter vs. margarine? I trust cows over scientists." Unknown










