Place sugar and corn syrup in a 4-5 quart kettle and place over medium-high heat.
Let sugar begin to melt. The sugar will liquefy around the edge of the kettle. Begin to stir constantly to ensure the sugar melts evenly.
Stir until the sugar is completely melted and dark amber in color.
Remove from the heat.
Slowly stir in heavy cream in small amounts. The caramel will bubble vigorously, but continue adding cream until it is incorporated and the caramel is smooth.
Add the vanilla extract and rum, if using.
Add in cold butter and stir slowly to bring down the temperature of the caramel. Stir until completely smooth.
Pour into an airtight jar and store in the refrigerator.
Video
Notes
Caramel will harden when it's in the refrigerator. To use, bring to room temperature or heat slowly in the microwave.
Nutrition
Serving: 1tbsp | Calories: 58kcal
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