Olive Oil (Best Option)
1 tablespoon per 1 tablespoon of butterOlive oil is a liquid fat that closely mimics the fat content of butter, which is crucial in marinades for flavor solubilization and moisture retention. Its unsaturated fats help dissolve fat-soluble flavor compounds, improving marinade penetration.
For best results, use extra virgin olive oil for a richer flavor, but avoid overheating as it has a lower smoke point. Ensure even mixing to coat proteins thoroughly.
Compared to butter, olive oil provides a lighter mouthfeel and a slightly fruity note, which can complement many marinade profiles without the dairy flavor.