In a medium-sized heavy bottomed saucepan with high sides, whisk the sugar on medium-low until it is melted. The sugar will clump up first but will eventually completely melt. This will take about 10 minutes. Be patient and keep an eye on it to make sure it does not burn, stirring every 30 seconds or so.
Once the sugar has melted, remove from heat immediately and stir in the butter until melted and combined. Be careful in this step because the caramel will bubble rapidly when the butter is added.
Next, pour in the heavy cream, sea salt flakes and vanilla. Stir until everything is combined.
Pour into a small bowl or jar and allow to cool completely before using. Taste a spoonful of cooled caramel. If desired, add more sea salt to taste!
Cover tightly and store for up to 1 month in the refrigerator or 3 months in the freezer. Caramel solidifies in the refrigerator. Reheat in the microwave or on the stove to desired consistency.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.