Place the parsley, red pepper flakes, shallot, garlic, red wine vinegar, salt, and pepper into the bowl of your food processor. Pulse a few times to break down the herbs, garlic, and shallot a little, then add the olive oil. Run the food processor on low until the garlic and shallot are finely minced. It should look like a broken sauce. Pour into a bowl and set aside.
½ cup parsley, ⅓ cup extra virgin olive oil, 1 pinch red pepper flakes, ¼ small shallot, 4 cloves garlic, 1 teaspoon red wine vinegar, 1 teaspoon kosher salt, ½ teaspoon black pepper