Spread nuts on rimmed baking sheet; toast in oven until golden and fragrant, tossing once, 8-10 minutes. Remove from baking sheet to prevent further browning. Let cool completely. In a food processor, combine nuts, basil, cheese, and garlic; season with salt and pepper. Process until finely chopped. With machine running, pour oil in a steady stream through the feed tube;process until smooth. Makes 1 cup. Combine with pasta.