Pesto Ala Genovese
["2 c. small basil leaves", "1/2 c. pine nuts or walnuts", "2 cloves garlic, minced fine", "3/4 c. olive oil", "6 Tbsp. grated Parmesan cheese", "6 Tbsp. grated Pecorino Roman cheese", "freshly ground black pepper to taste", "1 lb. pasta (your choice)", "boiling salted water"]
["In a blender or food processor, put basil leaves, nuts and garlic.", "Blend until smooth. Add olive oil, a little at a time, pushing down mixture with plastic spatula, as needed.", "Add grated cheese and pepper.", "Blend to smooth paste.", "Heat sauce in double boiler.", "Cook pasta al dente, according to package.", "Drain and transfer to heated serving dish.", "Toss with pesto."]
["basil", "nuts", "garlic", "olive oil", "Parmesan cheese", "Roman cheese", "freshly ground black pepper", "pasta", "boiling salted water"]