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Roasted Vegetable Skin Tapenade
Leftover Lab

Roasted Vegetable Skin Tapenade

July 19, 2026 2 min read Full Chaos 10 ingredients

Eggplant skins, pepper scraps, and charred onion ends blend into a smoky, complex spread that puts regular tapenade to shame.

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Ingredients

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  • 2 cups mixed roasted vegetable scraps (eggplant skins, pepper ends, onion layers, zucchini ends, tomato skins)
  • 1/4 cup toasted walnuts
  • 2 cloves garlic, roasted or raw
  • 2 tablespoons capers, drained
  • 3 tablespoons olive oil
  • 1 tablespoon lemon juice
  • 1 teaspoon smoked paprika
  • 1/2 teaspoon cumin
  • Salt and black pepper to taste
  • Fresh parsley or basil for garnish

The Story & Steps

The French have tapenade, the Italians have caponata, and the Middle East has baba ganoush. What they all share is the alchemy of transforming humble vegetables into something luxurious and spreadable. This recipe elevates the concept further by using the parts most people throw away—those smoky skins from roasted eggplant, the charred ends of peppers, the caramelized outer layers of onions. They're packed with concentrated flavor and deserve better than the compost bin.

Preparation

  1. If your vegetable scraps aren't already roasted, spread them on a baking sheet and roast at 425°F (220°C) for 15-20 minutes until charred and softened. You want deep color here—it means deep flavor.
  2. Let the scraps cool slightly, then add them to a food processor along with the toasted walnuts, garlic, and capers.
  3. Pulse several times to break everything down, then turn the processor on and slowly drizzle in the olive oil through the feed tube.
  4. Add the lemon juice, smoked paprika, and cumin. Process until you reach your desired consistency—some prefer it chunky like relish, others smooth like hummus.
  5. Taste and adjust seasoning with salt and pepper. Keep in mind that capers are salty, so you may need less salt than expected.
  6. Transfer to a bowl and garnish with fresh herbs.

This tapenade is incredibly versatile. Spread it on toast, swirl it into yogurt for a dip, toss it with pasta, use it as a pizza base, or serve it alongside grilled fish or meat. It keeps refrigerated for up to a week, and the flavors actually deepen over time as everything melds together. What started as trash becomes your secret weapon for making anything taste gourmet.

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Ingredients