Add the mayonnaise, vinegar, tomato paste, sun-dried tomatoes, basil, salt, and pepper to a medium size bowl.
Whisk the ingredients together until they are completely combined.
Adjust the seasonings with salt and pepper and cover and store in the refrigerator or serve.
Notes
Make-Ahead: You can make this mayonnaise up to 2 days ahead of time. You may need to re-season it before serving it.How to Store: Cover and keep the sun-dried tomato mayonnaise in the refrigerator for 5 days. This will not freeze well.I must admit I am a fan of Duke’s Mayonnaise if I’m not making it homemade.If you do not have fresh basil, you can substitute for 2 teaspoons of dry basil.