01 -
Grab a sturdy medium pot with thick bottom and put it on medium heat. Toss in your brown sugar and butter pieces, then keep whisking until sugar melts and butter blends in completely. Don't stop stirring until the mixture gets thick and smooth, which takes around 3-4 minutes.
02 -
Gently add the cream while whisking (watch out, it might bubble up and sizzle). Turn heat up to medium-high until it starts bubbling, then drop to medium-low heat. Keep whisking non-stop for about 5 minutes till it gets thicker. Turn heat down if it bubbles too much.
03 -
Take the pot off the heat, mix in your salt and vanilla. Let it sit and cool down, giving it a whisk now and then. Your caramel will get thicker as it cools off.