You see it sold in jars in the pasta sauce aisle and have probably spotted it on restaurant menus starring in everything from grain bowls to sandwiches to steak entrées. But what is pesto, exactly, ...

There is nothing like fresh pesto in the summer. I’ll eat basil pesto from a jar too, but this is one of those times where fresh really is better. How long does fresh pesto last? In my house, not very ...

A glass jar of pesto sauce and a spoon of pesto sauce sitting on a wooden cutting board. - Westend61/Getty Images A basic pesto is one of the simplest sauces known to the culinary world — basil, ...