Love me some fried oysters used to collect them off the beach 10 minutes from home at the time. Sounds like the ol egg wash is the tried and true here that's what I did too. Bit of butter in a pan on medium heat. Dip the oyster in egg roll it in flower cracker mix plop it in the pan. Underdone is 100 times better than over done. Make sure to hit it with fresh lemon after flipping it the first time and a shot of cracked pepper. Talkin a 10 minute deal here tops.