This is a recipe they demonstrated on our local afternoon news show and thought ohhh my goodness I simply have got to make that. This is a great dish for do ahead summer entertaining. Sweet and juicy grapes are the zesty extra that revive weary tastebuds on a hot summer day. The fragrant paste of basil, garlic, and pine nuts is classic and devine. Use it not only in this recipe but also as an appetizer stuff it into hollowed out cherry tomatoes. For a quick dip, stir 1/4 cup pesto into 1/2 cup plain yogurt,mayonnaise, or sour cream; sprinkle with parmesan cheese and season to taste.