01 -
Measure all ingredients precisely. Separate the eggs, placing whites in a large bowl for whipping and yolks in another bowl.
02 -
Sift together flour, baking powder, and salt to ensure a smooth, lump-free crumb.
03 -
Whisk egg yolks with vegetable oil, milk, and vanilla extract until homogenous and smooth.
04 -
Add cream of tartar to egg whites and beat with electric mixer until stiff peaks form for optimal airiness.
05 -
Gently fold dry mixture into wet yolks, then gently incorporate whipped egg whites in batches to preserve volume.
06 -
Distribute batter evenly into cupcake liners. Bake in a preheated oven at 325°F for 18-22 minutes or until toothpick inserted comes out clean.