These cookies are made with peas, sugar, and natural flavors to create a delightful balance of sweet and tangy tastes. The crispy texture and rich taste of membrillo, a traditional Spanish quince paste, combined with the subtle sweetness of vanilla, make these cookies a unique and indulgent treat. Some reviews mention the cookies being crunchy and having a pleasant aroma, while others appreciate the authentic flavor of the membrillo. Overall, these Vainilla con Membrillo cookies are a delicious and satisfying snack that many people enjoy.