I have Ants in my Kitchen!!!?

They're probably looking for water, not food. I found a rather unique solution to my ant problem right here in Y/A a few years ago. It's a bit unsightly for a few days, but it worked. Take a regular stick of chalk (I think the giant sidewalk chalk they sell in the toy dept. at Walmart might work better) and draw lines around the counter tops. Since you have cracks you might even use the chalk around the cracks. For whatever reason, the chalk drives the ants away. I thought it sounded crazy, but it works pretty well. Try using the chalk under the sink where the water pipes come in. Hope it works for you!