Preheat the oven to 350°. In a food processor, puree the entire grapes. Pass the puree thru a inaccurate sieve accurate into a practical bowl. Add the quartered grapes, scallions, garlic, chiles and Sriracha to the bowl and toss.
In a practical nonstick skillet, warmth 1 tablespoon of oil till appealing. Season half of the fillets with salt and pepper and add them to the skillet, skinned side up. Cook over high warmth till the fillets are golden brown on the underside, about 3 minutes. Transfer the fillets to a rimmed baking sheet. Repeat with the final oil and fillets. Transfer the fish to the oven and cook dinner till factual white all the contrivance in which thru.
Add the cilantro and vinegar to the grape salsa and season with salt. Transfer the fish to plates; spoon the salsa on top and again.
The salsa can stand at room temperature for as a lot as 2 hours. The seared fish would possibly perchance perchance also additionally be saved on the baking sheet for as a lot as Half-hour. Attain within the oven forward of serving.
Peach-inflected southern French white.