Vegetable Oil (Best Option)
1:1 (1 tablespoon vegetable oil per 1 tablespoon olive oil)Vegetable oil is a neutral-flavored, liquid fat similar in consistency and fat content to olive oil, which allows it to coat flour proteins effectively, limiting gluten formation and promoting a tender crust. Its liquid state at room temperature ensures even fat distribution, crucial for flakiness.
When substituting, use the same volume as olive oil. Ensure the oil is well incorporated but avoid overmixing to prevent toughening the dough. Because vegetable oil lacks the fruity notes of olive oil, the crust flavor will be milder.
The final crust will be tender and flaky, closely resembling the texture achieved with olive oil, but with a more neutral taste that pairs well with both sweet and savory fillings.