Home » Recipes » 20 MINUTE BUTTER AND ONION TOMATO SAUCE Suggestions? 20 MINUTE BUTTER AND ONION TOMATO SAUCE - Recipe Cost Cost information for the following is not included. Normally this is because the quantity or ingredient is unknown 1 or 2 handfuls Italian grated cheese (Parmesan, Grana Padano, or Romano) 1 lb (450-500 g) Bavette pasta (or other long pasta) Ingredients Per Serving Qty Common Price Price per Serving 2 cups (500 ml) plain pureed tomato sauce 1/2 cup $1.85 per 15 fluid ounces $0.52 5 tbsp (70 g) unsalted butter 1 tablespoon $3.99 per 16 ounces $0.16 1 medium onion, peeled and cut in half 1/4 onion $0.79 per pound $0.05 Total per Serving $0.73 Total Recipe $2.90 Please Log In or Sign Up to edit Recipe Cost info Email Recipe Cost Send To Message (if any) or Close