Sentence:  But in the summer, fresh <WSD>tomato sauce</WSD> should be a staple; peeling the tomatoes—which is optional—is undeniably a bit of work (seeding takes only a second), but the flavor of the sauce is much better than canned, thee texture is rich and silky, and the color much prettier. 
Meaning of the word marked with <WSD> tags:  A thick sauce made from tomatoes for pasta etc.