
Bright, smoky, and loaded with fresh herb flavor, this roasted red pepper relish is the kind of condiment that makes everything it touches taste more interesting. Broiling the peppers until deeply charred and then letting them steam is the move that unlocks their natural sweetness and gives the whole dish that rich, almost caramelized depth. The walnut-basil base comes together in a food processor with garlic, lemon juice, and a pinch of red pepper flakes — real, whole ingredients from start to finish, with zero dyes or synthetic additives hiding anywhere in the mix. That matters more than you'd think with store-bought pestos and jarred relishes, which often sneak in color-enhancing agents to make the product look more vibrant on the shelf. Here, the vivid green comes straight from fresh basil and the deep red from the peppers themselves — no shortcuts needed. Folding in the hand-pulsed walnuts at the end keeps the texture satisfyingly chunky rather than turning the whole thing into a smooth paste. Spoon it over grilled chicken, stir it into pasta, or just drag some crusty bread through it — it's endlessly useful and genuinely hard to stop eating.
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Position an oven rack 6 inches from the broiler element and preheat the broiler to high. Place the whole red bell peppers on a baking sheet, rub them with 1 tbsp olive oil, and broil for 18–22 minutes, turning with tongs every 5–6 minutes, until the skins are deeply charred and blistered on all sides and the peppers have collapsed.
Transfer the charred peppers to a mixing bowl, cover tightly with a plate or plastic wrap, and let them steam for 10 minutes — this loosens the skins.
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