What preparation method uses the outer, dry, papery layers of red or Tropea onions for nutritional benefit?
Answer
Preparing a Potent Onion Skin Infusion.
To maximize the intake of beneficial compounds without using industrial methods, a specific preparation called a Potent Onion Skin Infusion is recommended. This technique involves thoroughly washing the outer, dry, papery layers—and only those clean outer layers—from red or Tropea onions. These layers are then steeped in simmering water for a defined period of 15 to 20 minutes. The resulting strained liquid captures the highly concentrated antioxidants otherwise discarded, providing a functional boost when used as a base for savory soups or broths.
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