Place the parsley, chopped preserved lemons, garlic, red pepper flakes, salt, and lemon juice into a bowl. Gently mix to combine.
While stirring with a spoon, drizzle in the olive oil. Taste and adjust seasonings as desired. *Note: this is a thicker gremolata. If a thinner consistency is desired, add more olive oil.
Add to your favorite salad, seafood, grilled chicken, or beef dish. Store leftovers in a sealed container in the fridge for up to 1 week.