Dave Smith wrote:

It's tzatziki. It's usually made with drained yogurt, but I
have had variations of it made with yogurt and sour cream,
which gives it a little more substance. It is also important
to drain the grated cucumber because the water in the
cucumber will be extracted from it and make the sauce watery.

**********
Thanks, Dave. The wife and I looked through a few cookbooks
at Borders today and discovered the tzatziki thing, but it
didn't have your hint about squeezing all the liquid out of
the cucumbers. We're going to give it a shot Sunday evening.

We pretty much settled on how we're going to do the gyros.
We're also going to make hummus, a greek salad, and an Artemis
cake. For the first time ever, we're going to serve something
flaming, saganaki. WAHOOO!! Right after the grocery shopping
tomorrow we should probably pick up a fire extinguisher from
the hardware store.

Michael