Melted Coconut Oil (Best Option)
1:1 (1 cup melted coconut oil per 1 cup vegetable oil)Coconut oil is a fat with a similar melting point and consistency to vegetable oil, which helps create the tender, flaky layers in pie crust by coating the flour and limiting gluten formation. Its saturated fat content allows it to solidify at cooler temperatures, aiding in dough handling and flakiness.
To succeed, use refined coconut oil if you want a neutral flavor. Chill the dough well to prevent the fat from melting prematurely, which preserves the flaky texture. Be mindful that coconut oil solidifies at room temperature, so handle the dough quickly.
Compared to vegetable oil, coconut oil can produce a slightly firmer crust once baked due to its saturated fat content, but the overall texture remains tender and flaky without imparting strong flavors.