Green Bean Salad with Fava Beans, Fingerling Potatoes, Radishes, Pine Nuts, and Shallot-Sherry VInaigrette

1 pound green beans (preferrably haricot verts), trimmed and washed
5-6 large pods of fava beans, shelled
3-4 radishes, very thinly sliced
4-5 small to medium red or yellow skinned potatoes (or fingerlings), sliced 1/8" thick
small handful/bunch of chives, finely chopped (for garnish)
1/3 C toasted pine nuts (for garnish)

1 small shallot, minced
1/4 C sherry wine vinegar
1/4 C red wine vinegar
1 C extra virgin olive oil
sea salt and pepper

For the potatoes: in a small pot, add cold water and the potatoes and set over medium-high heat; bring the water to a boil and add some sea salt; cook the potatoes until fork tender, about 10-12 minutes. Drain potatoes and run under cold water to cool them down to room temperature.

For the green beans: In a medium pot (or the one you used for the potatoes), add water and salt and bring to a boil; add the beans and blanch for 4-5 minutes, or until the beans turn a bright green and are still crisp but slightly pliable when bent. Drain beans and immediately place in an ice bath to shock the beans and stop cooking (or run under cold water to cool to room temperature).

For the fava beans: in a medium pot (or the same pot you have been using for the potatoes and beans), add water and salt and bring to a boil. Add the fava beans to the boiling water and cook for 1-2 minutes; drain and immediately run under cold water until cool to the touch to work with. Carefully remove outer skin to reveal a bright green bean.

For the dressing: whisk together the sherry vinegar and red wine vinegar with the minced shallot; slowly whisk in the extra virgin olive oil and season generously with salt and pepper.

To compose: in a large bowl, add the green beans, favas, potatoes, and radishes; toss lightly with the dressing, enough to coat the vegetables but not drown them (you will have extra dressing). Plate the salad and sprinkle pine nuts and chives on top.