In a nonstick pan over high heat, toast the Seafood Magic, stirring constantly, until the seasoning darkens slightly, about 1 to 2 minutes. Remove from heat and cool.
Melt the butter over medium high heat. Whisk in the Seafood Magic and brown sugar. Whisk in the ketchup and cream and bring to a boil (see Note). Remove from heat.
NOTE: Check for thickness, especially as this stage; adjust with water if necessary.