Warm Leek and Goat Cheese Dip

Melt the butter in a large, deep skillet. Add the leeks and stir to coat with butter. Cover and cook over high heat just until beginning to soften, about 3 minutes. Uncover and cook over moderate heat, stirring frequently, until tender and lightly browned in spots, about 8 minutes longer. Remove from the heat. Stir in the goat cheese and cream cheese until melted and season with salt and pepper. Transfer to a shallow dish, sprinkle with the chives and serve with flat breads.