Onion Powder: Zero Waste with the Skins Recipe

Welcome to the Twenty-first issue of our Zero Waste in the Kitchen column.!
Today we value the onion skins, often discarded but very rich in fiber, flavonoids, antioxidants and vitamins A, C and E.

Turn them into onion powder is an easy way to reduce waste in the kitchen, add flavor to recipes and take advantage of all the nutritional benefits of onions.

With onion peels, nothing is wasted: taste, health and sustainability in one ingredient!

Nutritional benefits of onion peels

A number of important nutrients are concentrated in food peels, and throwing them away represents a great waste not only for the environment, but also for our health. An example of this is onion peels, Rich in fiber, flavonoids, antioxidants and vitamins A, C and E.

Onion peels have incredible benefits: they have Antitumor, antifungal and antibacterial properties. La quercetin, a flavonoid present in large amounts right in the peel, is fundamental for the blood pressure and for ward off the onset of cardiovascular disease.

In addition, they are able to To regulate lipid metabolism and lower blood sugar levels, the high concentration of insoluble fiber regulates intestinal transit helping purification and maintaining the pH of the intestines at optimal levels.

Onion powder: the perfect seasoning

Ingredients:

• Onions to taste.

Preparation:

1. Washing and drying
   Wash the peels thoroughly and dry them with a clean cloth.

2. Drying

   • With dryer: until completely dry

   • In the oven: 120 °C for about 1 hour, checking that they do not burn

   • In microwave: 2-3 minutes at maximum power, checking carefully

3. Blend
   Put the dried peels in a blender and blend until you get a fine, fragrant powder.

4. Conservation
   Store the powder in a sterilized glass jar in a cool, dry place for up to one month.

💡 Suggestion: perfect for bruschetta, salads, baked vegetables, soups, and velvety soups.

More Zero Waste recipes and ideas:

• You also find that recipes you can prepare with the asparagus stalks.
• Did you know that with the artichoke stems you can prepare a delicious pesto.
• Discover all the Zero Sprech recipesi.
• Le onions are the undisputed protagonists of our Onion Soup, tasty and ready in minutes.