Add sugar, cream of tartar and water to a medium saucepan, bring to a boil over medium-high heat. Cook without stirring until mixture begins to caramelize. Use a rubber spatula to gentle stir occasionally until mixture reaches a honey color.
Reduce heat to medium-low, continue to cook until mixture turns a deep amber, roughly 3-5 minutes. Remove from heat, immediately whisk in vanilla and butter. Whisk in cream and sea salt. Cool slightly in pan before pouring into glass storage or a bowl for immediate use.
Cool completely before covering and chilling. Warm before using.
Store chilled for up to 2 weeks.
Notes
Recipe makes roughly 1 cup. An original recipe from Baked by Rachel
Nutritional information is provided as a courtesy and is an estimate only. Nutrition information can vary for a variety of reasons. For the most accurate data, use your preferred nutrition calculator with the actual ingredients you used to make this recipe.
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