Pasta with Golden Onions and Breadcrumbs | Christopher Kimball’s Milk Street | Recipes, TV and Cooki

Ingredients

• ¼ cup extra-virgin olive oil
• 1 cup panko breadcrumbs
• ¾ cup fresh flat-leaf parsley, finely chopped
• 2 teaspoons grated lemon zest, plus lemon wedges, to serve
• Kosher salt and ground black pepper
• 12 ounces spaghetti or bucatini
• 3 tablespoons minced anchovy fillets, plus 4 teaspoons anchovy oil
• 2 large yellow onions, halved and thinly sliced
• 4 large garlic cloves, finely chopped
• 1 ½ cups dry white wine or vermouth
• ¾ teaspoon red pepper flakes
• 2 tablespoons salted butter, cut into 4 pieces