Lauree'S Pesto Sauce
["2 c. fresh basil leaves (packed)", "2 cloves garlic", "1/4 c. pine nuts", "1/2 c. freshly grated Parmesan or Romano cheese", "1/2 c. olive oil", "2 Tbsp. butter"]
["Put basil leaves into a processor and blend to a fine paste. Add garlic, pine nuts and cheese.", "Scrape down sides of bowl as necessary."]
["fresh basil", "garlic", "pine nuts", "freshly grated Parmesan", "olive oil", "butter"]