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| onions - yellow (chopped): 1/4 cup |
| olive oil: 1 tsp |
| garlic: 5 cloves (minced) |
| canned tomato paste: 1 lb (organic and diced) |
| canned tomato sauce: 6.5 oz |
| capers (drained): 1 tsp (chopped) |
| black olives: 1 cup (pitted and sliced) |
| balsamic vinegar: 2 tsp |
| salt: 1/4 tsp |
| black pepper: 1/4 tsp |
| red pepper flakes: 2 pinches |
| grated parmesan cheese: 150 g |
Credit: allrecipes.com