The article discusses the famous and unique cake known as "La torta loca" found at the Mercado de San Juan de Dios in Guadalajara. This cake is a popular treat among locals and visitors due to its vibrant colors and delicious flavors. The Mercado de San Juan de Dios is a bustling market where this cake is sold alongside other traditional Mexican foods and products. The article highlights the popularity of the cake and the market itself, noting that both are must-visits for anyone in Guadalajara looking to experience authentic Mexican cuisine and culture. Overall, "La torta loca del Mercado de San Juan de Dios" is a symbol of the vibrant and diverse food scene in Guadalajara, showcasing the city's rich culinary traditions.