Reply To: Requirement to tell your guests that your pasta is made from chickpeas?

If everyone at the table was expected to wash, as is the case on Shabbos and yuntuf, no need to tell people. However if it is a meal at which not everyone is eating bread, you need to tell people so they know which bracha to make. The same would apply anytime you serve something that looks like bread or mezonos, but isn’t.