Transforming Outer Salad Leaves into Rich Mayonnaise – An Zero-Waste Recipe

Inspired by a well-known NYC restaurant, this creative method turns often-discarded external lettuce leaves into a velvety green “mayonnaise”. It’s a brilliant approach to cut down on kitchen waste while creating a condiment delicious and versatile.

Why Use External Lettuce Greens?

Those outer greens are the plant’s protective wrapping, guarding the tender inside leaves. Although recycling produce trimmings is a basic zero-waste habit, finding creative applications for them is even more beneficial. Turning surplus food into fertile compost avoids dump buildup, where it can release methane, a potent environmental issue.

It’s quite radical if you think over it: food decomposes and transforms into the perfect growing medium to feed more crops, thus completing the loop and honoring the cycle of life.

Yet, with more than 30% extra food getting produced compared to required, consuming precious resources efficiently is essential. Reducing leftovers not only conserves cash but also supports the more sustainable lifestyle.

This Herb-Infused “Mayonnaise” Method

The versatile recipe functions with whatever variety of lettuce and nuts. By incorporating a whole egg, you eliminate any hassle to use up the leftover white. The outcome is an smooth, rich dressing that works beautifully with greens, grilled veggies, seared poultry, pasta, or grains.

Serves 2

For the Green Emulsion (Yields approximately 200 grams)

  • 100g butter
  • 50g outer lettuce greens from 2 romaine or butter lettuce, rinsed and dried
  • 20g shelled salted nuts – white nuts like blanched almonds assist maintain a bright color, but whatever seeds can work
  • 1 medium entire egg

To Make the Salad

  • Two little gem lettuces, halved lengthways
  • Extra-virgin olive oil, as needed
  • Fresh lime juice or apple cider vinegar, to taste
  • One small bunch soft greens (such as chives), sprigs picked whole, stalks finely chopped

Instructions

First making the emulsion. Melt the butter in one medium pot, toss in the external salad leaves, place a lid and cook for approximately 60 seconds, mixing a couple times, till they have wilted. Pour the contents into the jug of a immersion processor, add the nuts and whole egg, then blend till creamy. As necessary, add extra seeds to achieve a thick consistency. Store in a sealed jar in the fridge for up to 3 days.

For prepare the salad, drizzle each lettuce half with olive oil and acid, then salt generously. Dress with a tight pattern of the herb emulsion, then top with the greens. Place on 2 plates and enjoy immediately.

Shannon Houston
Shannon Houston

A Berlin-based environmental advocate and wellness coach, passionate about sharing sustainable living tips and holistic health practices.