I was reluctant to make this very simple sauce thinking it would be too bland – but it is surprisingly rich and wonderful.
2 cups canned Italian plum tomatoes, cut up.
5 tablespoons butter
1 medium onion peeled and cut in half
Put tomatoes, butter and onion in saucepan and cook uncovered, very slow but steady simmer for 45+ minutes. Mash any large pieces of tomato. Remove onion (I put in dish for nice side dish). Toss with pasta.