Instructions

  1. Whisk garlic, sugar, mustard, grated onion, salt and pepper, red pepper flakes, vinegars, and lemon juice in a medium bowl.
  2. Whisk together oils; add to vinegar mixture in a slow, steady stream, whisking until emulsified.
  3. Whisk in herbs, celery seeds, and Parmesan cheese.
  4. season with extra salt and pepper.
  5. Refrigerate in an airtight container up to 1 week. Enjoy!