Combine peanut butter, corn syrup, brown sugar, and whipping cream in a small pot or saucepan.
Put the pot on low heat and continue until the texture is smooth.
Continue simmering and stirring until the sugar has completely dissolved which should take around 4 minutes.
Make sure to not overcook the mixture as it will become thick. If you have overcooked it, you can add a bit of water to dilute it.
Remove the pot from the heat and let it cool down.
Once it has cooled down, you can put it in a resealable container or use it immediately as a topping for your ice cream or any other desserts.