Roman-Style Tripe Trippa alla Romana

• 2 pounds tripe
• 1/2 cup white vinegar
• 1 teaspoon vanilla extract
• 2 tablespoons extra virgin olive oil
• 1 red onion, thinly sliced
• 4 cloves garlic, coarsely chopped
• 2 cups basic tomato sauce, recipe follows
• 1/4 cup pecorino Romano, freshly grated
• 1/4 cup Parmigiano-Reggiano, freshly grated
• 1 bunch mint leaves, finely chopped
• 1/4 cup extra virgin olive oil
• 1 Spanish onion, chopped in 1/4-inch dice
• 4 garlic cloves, peeled and thinly sliced
• 3 tablespoons chopped fresh thyme leaves, or 1 tablespoon dried
• 1/2 medium carrot, finely shredded
• 2 (28-ounce) cans peeled whole tomatoes, crushed by hand and juices reserved
• Salt, to taste

1. In a large pot combine the tripe, vinegar, vanilla and enough water to cover the tripe by 2 inches.
2. Bring to a boil, reduce to a simmer and cook until the tripe is very tender, about 1 to 1 1/4 hours, replenishing the water as necessary.
3. Drain the tripe, reserving the cooking liquid, and allow to cool.
4. Slice the tripe into 1-inch strips.
5. In a 14 to 16-inch skillet, heat the olive oil over high heat until almost smoking.
6. Add the onion, garlic and tripe and saute 3 minutes.
7. Add the tomato sauce, bring to a boil, reduce to a simmer and cook, covered, for 30 minutes.
8. Meanwhile, in a small bowl, combine the grated cheeses and the mint and stir to combine.
9. When the tripe is finished, divide evenly among 6 warmed bowls and top with the cheese and mint mixture.
10. In a 3-quart saucepan, heat the olive oil over medium heat.
11. Add the onion and garlic and cook until soft and light golden brown, about 8 to 10 minutes.
12. Add the thyme and carrot and cook 5 minutes more, until the carrot is quite soft.
13. Add the tomatoes and juice and bring to a boil, stirring often.
14. Lower the heat and simmer for 30 minutes until as thick as hot cereal.
15. Season with salt and serve.
16. This sauce holds 1 week in the refrigerator or up to 6 months in the freezer.
17. Yield: 4 cups

tripe, white vinegar, vanilla, extra virgin olive oil, red onion, garlic, tomato sauce, pecorino romano, mint, extra virgin olive oil, onion, garlic, thyme, carrot, tomatoes, salt

Taken from www.foodnetwork.com/recipes/mario-batali/roman-style-tripe-trippa-alla-romana-recipe.html (may not work)