Piquillo peppers are a type of chili pepper that originated in the northern region of Spain. They are small, sweet, and mildly spicy, with a distinctive flavor that sets them apart from other varieties of peppers. Piquillo peppers are often roasted, peeled, and packed in jars or cans, making them a convenient ingredient to have on hand for various culinary creations. Their vibrant red color and tender texture make them a popular choice for stuffing, whether with cheese, meat, or other flavorful fillings.