Start by making a flavorful roasted-red-pepper-and-walnut mixture inspired by muhammara, a bright and nutty Middle Eastern dip. Spread that mixture onto store-bought puff pastry, and then slice, twist, and tie into knots before baking them to golden perfection. Once the knots are baked, that zingy spread flavors every bite. And don’t be shy with toppings: sesame seeds, oregano, and flaky sea salt make this easy appetizer sing.