Preheat oven to 400 degrees F.Advertisement
Place parsley, cilantro, jalapeño, garlic, oil, lemon juice, vinegar, 1/4 teaspoon salt and 1/4 teaspoon pepper in a mini food processor. Process until mostly pureed.
Stir cumin and the remaining 1/4 teaspoon salt and 1/4 teaspoon pepper together in a small bowl. Sprinkle over chicken and place the chicken on a baking sheet. Remove 3 tablespoons of the chimichurri sauce and use it to baste both sides of the chicken. Bake until an instant-read thermometer inserted into the thickest part of the chicken registers 165 degrees F, 17 to 22 minutes. Serve the chicken with the remaining chimichurri sauce.
To make ahead: Refrigerate chimichurri sauce (Step 2) for up to 1 day.
3 fat, 3 lean protein, 1/2 vegetable