Start adding olive oil. How much? Depends on how you are using your pesto. If you are making a spread, maybe 2 tablespoons. If a pasta sauce, double that or more. Either way, you add 1 tablespoon at a time, pounding and stirring to incorporate it. If you are using the processor, drizzle it in a little at a time. Serve as a spread on bread, as an additive to a minestrone (like this one
), as a pasta sauce or as a dollop on fish or poultry.