It depends on how much bread crumbs you want to use. If you use alot of crumbs it will stretch to 24 but the clam flavor will be cut down. I like a little less bread crumbs - just use an equal amount of crumbs as you have clams and other ingredients (example - 1/2 cup clam, onion etc mixture use 1/4 -1/2 cup crumbs depending how bready you want it. Remember more crumbs less clam). I would use the little necks for these because they have a more mild, delicate flavor which is much better IMO for these. Use the larger ones for chowder where you want a more intense flavor. But that is all up to your taste.

I realize the more crumbs I use the less clams I will have in the mixture, lol.
You said to use a dozen clams, but I only count ten half shells on your plate... is that all you got? Just give me a guesstimate here peeps. When you start with a dozen clams, how many shells get stuffed? 10? 14? 20? One for the plate, two for the cook

I actually had 13 shells stuffed but didn't want to crowd the plate. (I didn't like the looks of the fresh clams (they were to big for my liking) so I used minced clams this time because the last time I bought 2 dozen fresh and made casino and saved the shells. So I reused the shells this time. ) Again it depends on you. How much you clean the fresh clams (some people only like the white meat and throw away all the black or discolored stuff - which I tend to do myself so you have less meat). Some people like it bready. I can't give you an exact answer except you will definately get 12 but can stretch it to more. Sorry I can't give you the answer you want. It also depends on how full you stuff the shells. There are a lot of variables Fred. You are just making them for yourself? So just play with it the first time and go by your liking. Next time you will have a better judgement as to how many to your taste. This is just a homecooks recipe with no exact measures. I never get the same amount depending on bread, onions, clams and how full I stuff the shells.

I just didn't want to be scraping and cleaning 24 shells if 12 will get me by
Maybe I'll just steam them

Start with 12 Fred. You will deffinately get 12. If there is extra filling just fill them a second time or clean the extra shells. They are definately worth the work. These were a side so I used less bread crumbs. How many do you want/how many can you eat? They are worth it. Boy you are a tuff cookie!! LOL but I luv ya.

PS - The scraping isn't that difficult.

Did someone say cookie?

YEAH I have been dreaming of cookies!! Peanut butter or chocolate (not chocolate chip just dark, rich chocolate with nuts maybe) to be exact!!

This recipe looks great Peeps... and I love all the tips to about reusing the shells and freezing the prepared shells and bake as needed. Where the hell is the 'like' button???? LMAO!

Thank you Sattie!!
ROTFL @ "Like" button!!