Add the olive oil and red wine vinegar to a small bowl or jar. If you're using a jar, simply put on the lid and shake vigorously for several seconds.

Add the oregano, basil, garlic powder, onion powder, black pepper, salt, and optional red pepper flakes. These seasonings give the dressing its familiar Italian-sub flavor.

Whisk everything together until the oil and vinegar are temporarily blended. Don't worry if they separate after sitting. Oil and vinegar naturally separate, so give the mixture another shake or stir immediately before using it.

Taste a small amount and adjust it to your preference. Want more tang? Add a little extra vinegar. PWant more heat? Increase the red pepper flakes.refer a milder flavor? Add a little more olive oil. Want more heat? Increase the red pepper flakes.