Purple sweet potato cake

There are also some purple potatoes. Just use them to make this purple sweet potato cake. The ingredients are very simple. They don't even have sugar, so they add some raw flour to prevent the purple potato from becoming too loose.Raw flour, what is it? Never quite understood. The most obvious thing is that it is a kind of starch. But there are many kinds of starch, such as corn starch, sweet potato starch, pea starch, potato starch.... What kind is it?After checking for a long time, I got the impression that raw flour mostly refers to potato starch. I don't know if this conclusion is correct, so I should use it correctly.The effect seems to be good. The purple potato is very dark. Because of the addition of raw flour, the cake is a little bit chewy. Personally, I think this powder can be less. The original flavor of purple potato is not particularly sweet. It's very good...

Main Ingredients

• Purple sweet potato 200 g

Auxiliary Ingredients

• Uncooked flour 20 g

Purple potato has its own sweet taste, but there is no need to add sugar. If you like to be sweet, you can season it according to your own taste.When frying, use a small fire to avoid external scorch and internal growth.