They are also good sources of copper, iron and manganese—all essential ... The Japanese sweet potato has a purple skin and yellow flesh, and its flavor is ... the slices, put a single layer on a rack on a parchment- paper-lined sheet pan.
Fiber-rich and loaded with vitamins C, B and K, and nutrients such as iron, zinc, copper and potassium, chicories are the cold season ... This is my favorite way to cook purple- and red-leafed radicchio... . The balsamic vinegar is a great foil.
However, if your silver piece includes other metals, such as copper or brass, ... you may see slightly blotchy purple areas after polishing, known as firestain. ... ketchup, and baking soda, or using the aluminum foil technique,. ..