In a sauce pot, melt butter, honey, vanilla, and brown sugar on med. high until melted. Stirring constantly!
Once melted reduce heat to medium or low and cook until candy hits 215-220 F.
Turn heat on lowest possible and cook for 2-3 minutes, stirring constantly.
Remove from heat and add salt and baking soda. Stirring constantly.
Quickly poor in a GREASED baking dish and allow to cool.
Once cool, cut in small rectangles, sprinkle top with kosher salt and wrap in small squares of wax paper.
Notes
Put wrapped caramels in an airtight bag or canister in the pantry or a dry, cool cupboard. Wrap homemade caramel pieces individually in plastic wrap before placing them in a canister or zip-top plastic bag. Protect your caramels from moisture and they will stay fresh for up to three weeks at room temperature.