When it comes to using olive oil, it's always important to use a high-quality oil which gives you the most robust flavor. I love using EVOO (aka Extra virgin olive oil) for the best chemical stability when it comes to baking or cooking, however, you can also use regular olive oil. In addition, artisan-style oil can add even more flavor. Personally, I enjoy using Brightland's oils which come in various flavor profiles like basil, chili oil, etc. which adds so much flavor.