In a small saucepan combine vinegar, wine, shallots, and dried tarragon and simmer over moderate heat until reduced to 2 tablespoons of liquid. Cool and strain through a fine sieve.
In the top of double boiler or a heat-proof bowl whisk the egg yolks until they become thick and sticky. Whisk in the reduced vinegar mixture and pepper. Place the pan or bowl over a saucepan of simmering, not boiling, water. Whisk until mixture is warm, about 2 minutes. (If mixture appears to become lumpy, dip pan immediately in a bowl of ice water to cool, whisk until smooth and then continue recipe.) The yolk mixture has thickened enough when you can see the bottom of the pan between strokes and mixture forms a light cream on the wires of the whip.
While whisking the yolk mixture gradually pour in the melted butter, a tablespoon or so at a time whisking thoroughly to incorporate before adding more butter. As the mixture begins to thicken and become creamy, the butter can be added more rapidly. Do not add the milk solids at the bottom of the melted butter.
Season the sauce, to taste, with chopped tarragon, salt and pepper. To keep the sauce warm, set the pan or bowl in lukewarm water or in a thermos.
And for the roasted vegetables I followed a recipe from Ina Garten:
Preheat the oven to 425 degrees F.
If the parsnips and carrots are very thick, cut them in half lengthwise. Slice each diagonally in 1-inch-thick slices. The vegetables will shrink while cooking, so don't make the pieces too small. Place the cut vegetables on a sheet pan. Add the olive oil, salt, and pepper and toss well. Roast for 20 to 40 minutes, depending on the size of the vegetables, tossing occasionally, until the parsnips and carrots are just tender. Sprinkle with dill and serve hot.
In a medium saucepan, combine 4 cups of water with the farro. Bring to a boil over high heat. Cover and simmer over medium-low heat until the farro is almost tender, about 20 minutes. Add 1 1/2 teaspoons of the salt and simmeruntil the farro is tender, about 10 minutes longer. Drain well. Transfer to a large bowl and let cool.
Meanwhile, bring a medium pot of salted water to a boil over high heat. Add the green beans and stir. Cook for 2 minutes. Transfer the cooked green beans to a bowl of ice water and let cool for 2 minutes. Drain the green beans.
Once the farro has cooled add the green beans, olives, red pepper, Parmesan, and chives. Stir to combine. In a small bowl mix together the sherry vinegar, olive oil, mustard, pepper, and the remaining 1/2 teaspoon salt. Stir to combine. Pour the sherry vinaigretteover the farro salad. Toss to combine and serve.
SERVINGS: 4 (SIDE); Calories: 334; Total Fat 15 grams; Saturated Fat: 3.5 grams; Protein: 13 grams; Total carbohydrates: 38 grams; Sugar: 5 grams Fiber: 7 grams; Cholesterol: 13 milligrams; Sodium: 888 milligrams
