Upcycling External Lettuce Greens into Creamy Mayonnaise – A Zero-Waste Recipe
Inspired by an acclaimed New York eatery, the groundbreaking method turns often-discarded outer salad leaves into a velvety herbaceous “mayonnaise”. It’s a smart way to reduce food waste while making something tasty and flexible.
The Reason Repurpose Outer Lettuce Leaves?
Those external leaves are nature’s protective packaging, guarding the tender inside lettuce. While composting produce trimmings is one fundamental zero-waste practice, discovering new uses for these parts is additionally impactful. Turning excess ingredients into rich soil prevents dump accumulation, where it can emit greenhouse gases, a potent environmental issue.
It’s rather radical if you think over it: food decomposes and transforms into that ideal soil to nourish more plants, thus completing the cycle and respecting nature’s process of life.
Yet, with more than 30% extra produce getting made compared to required, using valuable ingredients efficiently becomes essential. Minimizing waste not only conserves cash but also promotes the increasingly sustainable way of living.
This Herb-Infused Emulsion Method
This adaptable formula functions with whatever variety of lettuce and seeds. By incorporating one whole egg, you avoid the need to use up an leftover egg white. The result is a smooth, rich dressing that pairs perfectly with greens, roasted veggies, seared chicken, noodles, or grains.
Serves two
To Make the Green Emulsion (Yields about 200 grams)
- 100 grams butter
- 50g external lettuce leaves from 2 romaine or butter lettuce, washed and thoroughly dried
- 20 grams shelled roasted pistachios – light-colored seeds like blanched almonds help keep the bright color, though any seeds will do
- One medium whole egg
For the Side
- Two romaine or butter lettuces, halved lengthways
- Extra-virgin olive oil, as needed
- Lemon juice or apple cider vinegar, to taste
- One small bunch soft greens (like parsley), leaves left whole, stalks finely minced
Steps
Begin by preparing the mayonnaise. Melt the butter in a small saucepan, toss in the external lettuce leaves, place a lid and cook for about a minute, mixing a couple times, till they have softened. Transfer the contents into the jug of a stick processor, include the nuts and whole egg, then blend until smooth. If needed, incorporate more nuts to get a thick texture. Keep in an airtight container in the fridge for as long as three days.
To assemble the salad, drizzle each gem portion with olive oil and acid, then season generously. Dress with one zigzag pattern of the green mayonnaise, then scatter with the herbs. Arrange on 2 dishes and serve immediately.
