I have made this salad dressing before and it's awesome. I love vinaigrettes and this tastes like one you would get at a restaurant. Substitute apple cider or white vinegar for the red, and regular mustard for the dijon. I like adding lemon juice and more vinegar, some red pepper flakes.
This will make enough to fit into a bottle.
3/4 cup olive oil
1 cup vinegar
2 tsp garlic powder
2 tsp oregano
2 tsp basil
1.5 tsp pepper
1.5 tsp salt
1.5 tsp onion powder
1.5 tsp dijon mustard