Milk chocolate contains pure chocolate liquor, milk solids, vanilla or vanillin, sugar, lecithin, and extra cocoa butter. U.S. government standards for milk chocolate require a minimum of 10 percent cacao (including a total of 29 to 33 percent cocoa butter) plus 12 percent whole-milk solids, but high-quality milk chocolate usually contains between 34 and 45 percent and can even be as high as 53 percent cacao. Milk chocolate produced in Switzerland must have 30 percent cocoa solids plus cocoa butter.