Vegetable Oil (Best Option)
1:1 (1 cup vegetable oil per 1 cup coconut oil)Vegetable oil is a highly refined oil with a neutral flavor profile and a fat composition similar to coconut oil, making it an excellent substitute in doughnuts. It provides the necessary fat to create a tender crumb and crisp exterior when fried.
To ensure success, use a high-quality vegetable oil with a high smoke point such as canola or sunflower oil. Avoid unrefined or strongly flavored oils. Monitor frying temperature carefully to prevent oil breakdown.
Compared to coconut oil, vegetable oil will not impart any coconut flavor, resulting in a more neutral taste but with very similar texture and mouthfeel in the final doughnut.