Step 1: In a medium bowl or a clean, empty glass jar with a tight-fitting lid, combine the red wine vinegar, Dijon mustard, minced garlic, dried oregano, dried basil, onion powder, salt, and black pepper.
Step 2: Whisk these ingredients together thoroughly until they are well combined. If using a jar, simply put the lid on tightly and shake vigorously for about 30 seconds to dissolve the spices and create the flavorful base for your homemade Italian dressing.
Step 3: Slowly drizzle in the extra virgin olive oil while continuously whisking. If using a jar, add the olive oil, secure the lid, and shake vigorously for 1-2 minutes until the dressing is well emulsified and appears creamy and unified. This gradual addition helps prevent separation and creates a smooth, delicious homemade Italian dressing.
Step 4: Taste the homemade Italian dressing and adjust the seasonings as needed. You may wish to add more salt, pepper, or a pinch of sugar or honey to balance the acidity. For an extra kick, a tiny pinch of red pepper flakes can be added. This is your chance to customize the homemade Italian dressing to your perfect preference.
Step 5: Serve your fresh homemade Italian dressing immediately or store it in an airtight container in the refrigerator for up to one week. If the olive oil solidifies in the fridge, simply remove it about 15-20 minutes before serving and give it a good shake or whisk to restore its consistency. Enjoy your homemade Italian dressing on salads, as a marinade, or as a flavorful dip!