3 c basil leaves
4 cloves garlic
1/4 c pine nuts (toast 'em if you like)
1 c grated parmesan cheese
1/2 c olive oil
Pulse all ingredients in a food processor until they form a paste.
If you're not going to use all of it at once, make sure you pour a little olive oil on the top before you put it in the refrigerator, because the basil will turn brown when it's exposed to air.
For a fantastic Pesto Chicken Pizza, top your favorite pizza dough with pesto, a cut up cooked chicken breast, some artichoke hearts, and some shredded mozzarella.