Sweet potato and purple potato porridge to take a nice name is double potato health porridge. Double potato porridge of double potato shows the porridge is sweet potato and purple potato porridge ingredients, health highlights the role of the porridge, good to hear and remember. Sweet potato is also called sweet potato, sweet potato, sweet potato, yam, etc., belongs to the annual herbaceous plants. Purple potatoes, also known as black potatoes, potato flesh is purple to dark purple. It is rich in selenium and anthocyanins in addition to the nutrients of ordinary sweet potatoes. Porridge is a semi-liquid food cooked with rice flour and other foods.