Upcycling Outer Lettuce Greens into Creamy Mayonnaise – An Zero-Waste Recipe

Inspired by a well-known NYC eatery, the creative technique converts often-discarded outer salad leaves into an luxurious green emulsion. It’s a ingenious way to minimize food waste while producing a condiment tasty and adaptable.

Why Repurpose Outer Salad Greens?

Those external leaves serve as the plant’s protective wrapping, guarding the tender inside leaves. Although composting produce trimmings is one fundamental zero-waste practice, finding creative applications for them is additionally impactful. Converting excess ingredients into fertile soil prevents dump accumulation, where it can release methane, a potent climate concern.

It’s quite radical when you think about it: food decomposes and becomes the ideal soil to nourish further crops, thereby closing this loop and respecting nature’s cycle of life.

However, with over thirty percent surplus produce being made than required, using precious ingredients wisely is crucial. Minimizing leftovers not only conserves cash but also promotes the more eco-friendly way of living.

This Green Emulsion Method

The adaptable formula functions with whatever variety of salad greens and seeds. By using one entire egg, one eliminate any need to use up an extra egg white. This result is a smooth, rich sauce that works beautifully with greens, roasted veggies, seared poultry, noodles, or grains.

Serves 2

To Make the Green “Mayonnaise” (Makes about 200g)

• 100g butter
• 50g outer lettuce leaves of 2 romaine or butter lettuce, washed and dried
• 20 grams shelled roasted nuts – light-colored nuts like cashews help keep a bright green, but whatever nuts can work
• 1 medium entire egg

To Make the Side

• 2 little gem lettuces, halved longwise
• Cold-pressed olive oil, as needed
• Fresh lime juice or white-wine vinegar, to taste
• One generous bunch fresh herbs (such as chives), sprigs left intact, stems thinly minced

Instructions

First making the mayonnaise. Melt the butter in a medium saucepan, toss in the outer salad leaves, place a lid and cook for about a minute, mixing a couple times, until they have softened. Transfer this contents into a jug of a stick processor, add the pistachios and whole egg, then process until creamy. If needed, add more seeds to get a thick consistency. Keep in a sealed jar in the fridge for up to three days.

For prepare the salad, sprinkle each gem half with olive oil and lemon juice, then salt liberally. Coat with one tight drizzle of the herb emulsion, then top with the herbs. Arrange on 2 dishes and enjoy immediately.