Szechuan Noodles

Name: Szechuan Noodles
Ingredients: 6 garlic cloves, chopped; 1/4 cup fresh ginger, peeled and chopped; 1/2 cup vegetable oil; 1/2 cup tahini (sesame paste); 1/2 cup smooth peanut butter; 1/2 cup good soy sauce; 1/4 cup dry sherry; 1/4 cup sherry vinegar; 1/4 cup honey; 1/2 teaspoon hot chili oil; 2 tablespoons dark sesame oil; 1/2 teaspoon freshly ground black pepper; 1/8 teaspoon ground cayenne pepper; 1 pound spaghetti; 1 red bell pepper, julienned; 1 yellow bell pepper, julienned; 4 scallions, sliced diagonally (white and green parts)