When you talk about magic eraser you mean "Magic Eraser it's a type of hard plastic, and when it is made into a foam a fine porous surface is created. The foam is made of super-fine fibers that lift and trap dirt and rub out marks. These thin, glass-like fibers are abrasive, so Magic Erasers can be thought of as a cross between a sponge and fine sandpaper"?
Abrasive it's bad for gold plated pan. It take gold off.
Colman's mustard powder - it's perfect.
Don't put too much water. Paste, not liquid. And after apply on pan - put Vapman up side down - so the mustard will not move to the nozzles.
Last time I applied mustard twice. 45 minutes and 45 minutes. Second round just to get the pan really shiny.
Toothpicks didn't work so well - it's problematic to move mustard around the toothpicks. I just applied around nozzles. And cleaned little bit mustard that got in to nozzles by using 1 meter of wet sewing thread with knots on it. Moving the sewing thread through the nozzle from outside to inside of the pan. Moving sewing thread, washing sewing thread in hot water, moving again.