Grate 2 tablespoons of zest from the lemons and squeeze out 1/4 cup of juice. Add the zest and juice to a food processor or blender along with the cilantro, parsley, mint, garlic, salt, red pepper flakes, and olive oil. Pulse to blend the ingredients. If the sauce is too thick, add more oil and lemon juice. The sauce should be just thin enough to pour. Transfer the sauce to a serving bowl and serve with empanadas.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.