World's Best Pasta Sauce

This recipe came up on my Facebook feed some time ago from Mental Floss Magazine. The headline reads "The Pasta Sauce Hailed as the World's Best is Surprisingly Easy to Make at Home". Since we had planned on an uninspired dinner of store-bought tortellini it seemed like topping it with the "world's best" sauce would make our meal seem more of a celebration. And as James pointed out: if it's "hailed" you really can't go wrong. It was surprisingly easy to make. The only ingredients are canned whole tomatoes, one onion cut in half, 5 tablespoons of butter, and a bit of salt. Everything went into our cast iron pot and simmered for 45 minutes. The butter melted into the tomato juices and made a nice smooth sauce. The onion was removed and I broke up the tomatoes a bit before serving. It was quite flavorful and complemented the tortellini well. Malbec was naturally our choice for a wine pairing.