Artichoke Salad with Saffron Vinaigrette

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Ingredients

1. 1 lemon, halved
2. 3 large artichokes
3. 2 tablespoons extra-virgin olive oil
4. 2 slices bacon, cut into 1-inch pieces
5. 2 garlic cloves, thinly sliced
6. 1 carrot, thinly sliced
7. 1 medium onion, thinly sliced
8. 2 cups dry Riesling
9. 1 cup water
10. 2 thyme sprigs
11. 1 bay leaf
12. Salt and freshly ground pepper
13. Pinch of saffron threads
14. 1/2 teaspoon sherry vinegar
15. 1/2 teaspoon fresh lemon juice
16. 1 head Bibb lettuce, leaves separated

1. Squeeze the lemon juice into a bowl of cold water; add the lemon to the bowl. Using a sharp stainless-steel knife, cut off the artichoke stems and halve the artichokes crosswise. Discard the tops. Working with 1 artichoke at a time, pull off all the outer green leaves from the bottoms until you reach the yellow leaves. Trim off the tough outer skin. Scrape out the hairy choke with a teaspoon, then drop the artichoke hearts into the lemon water.
2. Heat 1/2 tablespoon of the olive oil in a medium saucepan. Add the bacon and cook over low heat, stirring until the fat begins to melt, about 4 minutes. Stir in the garlic, carrot and onion. Cover and cook over low heat until the vegetables are softened, about 8 minutes. Add the remaining 1 1/2 tablespoons of olive oil and the artichoke hearts. Stir in the Riesling, water, thyme and bay leaf and bring to a boil. Season with salt and pepper and simmer over low heat until the artichoke hearts are tender, about 15 minutes.
3. Using a slotted spoon, transfer the artichoke hearts to a plate. Skim 1 1/2 tablespoons of oil from the artichoke broth and put the oil in a small bowl. Crumble the saffron threads into the oil. Strain the artichoke broth. Pour 1/2 cup of the broth into the saucepan and boil over high heat until reduced by half, about 3 minutes. Discard any remaining artichoke broth.
4. Cut 1 artichoke heart in half and cut 1 of the halves into chunks. Transfer the artichoke chunks to a blender. Add the reduced broth and puree. With the machine on, slowly add the saffron oil and blend until smooth. Scrape the puree into a small bowl and stir in the sherry vinegar and lemon juice. Season with salt and pepper.
5. Thinly slice the remaining 2 1/2 artichoke hearts. In a medium bowl, toss the lettuce with 1 tablespoon of the vinaigrette and arrange it on 2 plates. Top the Bibb lettuce with the sliced artichokes and drizzle with the remaining saffron vinaigrette and serve.