bliksem wrote:

I have twin kithen sinks, the right with a garbage disposal. I had a
pot of plain (no sauce etc.. ) cooked pasta that I decided to get rid
of. I ran water while running the disposal unit, but then I noticed
that the water was starting to block up. I removed all the ground up
pasta from the unit, but still the water will not drain. The left
kitchen sink is draining fine.
I tried a toilet plunger, but( and here's the big clue probably), the
water squirts out of the aerator. I opened the cap of the aerator. It
has a central copper pipe, but the water ( when I use the plunger
slowly ) is welling up on the outside of the copper pipe, not from
within it.
Help from the pro's please ... what do I do? Any easy way out of this?
I'm "house repair" challenged !!

If the 2 sides of the sink share a common drain (most likely),
then there will be a TEE fitting between them. The TEE has a
baffle plate inside which will often clog with pasta.

Suggest taking the TEE connection apart as a first step.

Jim