Step 1: Combine Ingredients: In a jar with a tight-fitting lid, combine the olive oil, white wine vinegar, water, minced red onion, dried oregano, dried basil, dried parsley, garlic powder, salt, pepper, and sugar (if using).
Step 2: Shake Well: Secure the lid tightly onto the jar. Shake vigorously for about 30 seconds, ensuring that all the ingredients are well combined and the dressing appears slightly emulsified.
Step 3: Taste and Adjust: Open the jar and taste the dressing. Adjust seasoning as needed. Add a pinch more salt or pepper to taste, or a splash more vinegar for extra tang.
Step 4: Let Flavors Meld: For optimal flavor, refrigerate the dressing for at least 30 minutes before serving. This allows the herbs to rehydrate and the flavors to meld together.
Step 5: Shake Before Serving: Before serving, shake the dressing again to re-emulsify, as it may separate slightly upon standing. Drizzle over your favorite salad and enjoy.
Optional Tips: For a creamier dressing, add 1/2 teaspoon of Dijon mustard during Step 1. To add a bit of heat, include a pinch of red pepper flakes. Red wine vinegar can be substituted for white wine vinegar for a bolder flavor.