I use seasoned breadcrumbs. If you want them a bit browner, do an egg wash on them before tossing them in the oven. Usually 25 minutes at 350º (176ºC) will do the trick nicely. Abusive comment hidden. (Show it anyway.)
I make Scotch Eggs all the time. Use the oven instead of a deep fryer. We actually all liked them better baked than fried. Abusive comment hidden. (Show it anyway.) 2 replies