Homemade butterscotch sauce is irresistible and incredibly easy to make. All you need is 5 ingredients and 15 minutes to produce a versatile treat you can also offer as a sweet gift!
Set a medium saucepan over medium heat, then add the butter and melt it, stirring constantly. Whisk in the cream, brown sugar, and 1/2 tsp (2 ml) of the salt. Bring to a gentle boil, lower the heat and simmer for 5 minutes, whisking a few times throughout. Remove the butterscotch sauce from the heat, then whisk in the vanilla. Taste the sauce (careful not to burn yourself!). Adjust the salt level to your liking.
SERVING: You can serve butterscotch sauce cold from the fridge, room temperature, or warm. A thin layer of sugar syrup can separate at the bottom of the jars after refrigeration, simply give the butterscotch sauce a good stir and serve as desired.To reheat, microwave the butterscotch sauce for about 10 seconds at a low heat setting, then stir to verify if the sauce is loose and warm. If the sauce does not seem warm enough, return it to the microwave for a few seconds more.
STORAGE: Butterscotch sauce thickens and becomes paler in color as it cools. Even refrigerated, it remains soft enough to use straight out of the fridge–very handy for sudden cravings! Keep the sauce refrigerated for up to 2 weeks. Freezing is not recommended.