01 -
In a medium saucepan over medium heat, whisk together heavy cream, cocoa powder, brown sugar, and corn syrup until fully combined and simmering.
02 -
Reduce heat to low, add butter and peanut butter, stirring continuously until mixture is smooth and fully melted.
03 -
Remove from heat and stir in vanilla extract. Allow the sauce to thicken slightly as it cools before serving.
04 -
Serve warm over desserts or transfer to an airtight container and refrigerate. Reheat gently prior to serving.