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Drawing from a well-known NYC restaurant, the innovative method turns typically wasted outer lettuce leaves into a smooth herbaceous “mayonnaise”. This is a ingenious approach to cut down on leftovers while producing a condiment tasty and versatile.

Why Repurpose External Salad Greens?

These external leaves are the plant’s natural wrapping, guarding the tender inside lettuce. While composting produce trimmings is one fundamental sustainable habit, finding new applications for them is even more impactful. Converting excess ingredients into fertile compost avoids landfill accumulation, where they can emit greenhouse gases, which is a potent environmental issue.

This is rather radical when you think about it: food rots and transforms into the perfect growing medium to nourish more plants, thus completing this loop and honoring nature’s cycle of growth.

However, with over 30% surplus produce being made compared to required, using precious resources efficiently becomes crucial. Reducing leftovers not only conserves money but also supports a increasingly eco-friendly lifestyle.

The Herb-Infused “Mayonnaise” Method

This adaptable formula works with any variety of lettuce and nuts. By using a entire egg, you avoid the need to use up the extra white. This outcome is an smooth, nutty sauce that works perfectly with salads, grilled veggies, seared poultry, noodles, or rice.

Yields 2

To Make the Green “Mayonnaise” (Makes approximately 200 grams)

• 100g unsalted butter
• 50 grams outer salad leaves of 2 romaine or butter lettuce, rinsed and dried
• 20g peeled salted pistachios – white seeds such as cashews assist keep a bright green, but any nuts will do
• 1 medium entire egg

For the Side

• 2 romaine or butter heads, split longwise
• Extra-virgin oil, as needed
• Lemon juice or white-wine vinegar, to taste
• One small handful fresh herbs (like chervil), leaves left whole, stems finely minced

Instructions

Begin by preparing the mayonnaise. Melt the fat in a small pot, add the external salad greens, cover and cook for about a minute, mixing a couple times, until they’ve softened. Transfer this mixture into the jug of a immersion processor, add the pistachios and egg, then process until smooth. As necessary, incorporate extra nuts to achieve a thick consistency. Store in a airtight jar in the fridge for as long as three days.

For prepare the salad, sprinkle each lettuce portion with oil and acid, then season generously. Dress with one zigzag drizzle of the herb mayonnaise, then top with the herbs. Place on 2 plates and serve immediately.