Butter or pam spray an 8x8 baking dish. Line pan with a parchment sheet.
In a 2 quart bowl or larger, melt butter.
Add remaining ingredients (except vanilla) and return to the microwave for 6 minutes and 30 seconds. Remove using hot pads (the bowl will be super hot!)
Stir in vanilla.
Pour caramel into prepared baking dish. Once set, lightly with a little sea salt if desired.
Allow to fully cool and set before cutting.
Refrigerate for 25 minutes before slicing (it will make the process easier!)
Remove sheet of caramel and slice with a large sharp knife. TIP* I like to put a little butter on a napkin or paper towel and wipe both sides of the knife. It helps the caramels not stick as you slice them!
I like to wrap the caramels in wax paper or the clear candy wraps I linked in the post.
Caramels do not require refrigeration, but we like to store ours in the fridge!