Add zesty Italian dressing seasoning mix, vegetable oil, olive oil, mayonnaise, white vinegar, granulated sugar, Italian seasoning, salt, black pepper, and garlic powder to a blender or food processor.
Blend until all the ingredients are smooth and thoroughly combined.
Transfer the dressing to a serving container or storage jar.
Pour on top of your favorite salad and enjoy!
Notes
*Store the leftovers in an airtight container for up to 3 weeks.*The ingredients will separate some while it's stored. Make sure to shake it thoroughly before using it.