- 2 pounds haricots verts or slender green beans, trimmed
- 1 pound medium shallots
- 2 tablespoons (1/4 stick) butter
- 2 tablespoons olive oil
- 1/4 teaspoon dried thyme
- Cook haricots verts in boiling salted water until tender, about 4 minutes (or 6 minutes if using green beans). Drain. Transfer to bowl of ice water to cool. Drain well. DO AHEAD Can be made 1 day ahead. Wrap in several layers of paper towels. Seal in plastic bag and chill.
- Cut off and discard ends from shallots. Cut shallots lengthwise in half, then remove peel with paring knife. Melt butter with oil in heavy large skillet over medium-high heat. Add shallots and sauté 1 minute. Reduce heat to medium-low; sauté until shallots are browned and tender, about 20 minutes. Sprinkle with thyme. Season to taste with salt and pepper. DO AHEAD Can be made 2 hours ahead. Cover loosely with foil and let stand at room temperature.
- Add haricots verts to shallots in skillet and stir over medium-high heat until heated through, about 6 minutes. Season to taste with salt and pepper. Transfer to bowl and serve.