[Sca-cooks] Which kind of onions in an onion tart

[Cheri or Anne]

Greetings all,
 
I'll be cooking for a feast at the end of March and plan on making onion tarts.  Not being a real big fan of onions per say, I'd like to know what y'all think the best choice of onions I should buy for the tarts?  I live in Washington but would buy from the internet if necessary.
 
Thank you.
 
IS,
THL Anne 

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