Potatoes Lyonnaise with lemon and Chile




Ingredients

1 tablespoon unsalted butter1 tablespoon extra-virgin olive oil2 medium onions, thinly slicedSalt2 baking potatoes (1 3/4 pounds), peeled and sliced crosswise 1/2 inch thick1/4 cup rendered duck fat, or or melted unsalted butter1 large garlic clove, choppedFreshly ground black pepperPinch of crushed red pepper2 teaspoons fresh lemon juice2 tablespoons chopped parsley

In a medium saucepan, melt the butter in the olive oil. Add the sliced onions and a large pinch of salt. Cover and cook over moderate heat, stirring occasionally, until the onions are very soft and golden, about 20 minutes.

2.Meanwhile, put the potato slices in a large saucepan of water, add a large pinch of salt and bring to a boil. Simmer over moderately high heat until the potatoes are just tender, about 5 minutes. Drain the potatoes and spread the slices in a single layer on a baking sheet; let cool to room temperature. Gently pat the potato slices dry.

Directions

In a large nonstick skillet, heat the duck fat. Add the potato slices and cook over moderately high heat until they are browned and crisp, about 6 minutes on each side. Add the chopped garlic and shake it in the skillet until just golden, about 30 seconds. Add the cooked onions and season them with salt and black pepper. Gently stir in the crushed red pepper and lemon juice. Transfer the potatoes and onions to a platter, sprinkle with the chopped parsley and serve right away.