Preheat the oven to 350°F (175°C). Grease and flour an 8-inch square or round cake pan.
Combine dry ingredients – In a large bowl, whisk together flour, sugar, and baking powder.
Mix wet ingredients – In a separate bowl, whisk together milk, vegetable oil, eggs, and vanilla extract until smooth.
Combine & mix – Gradually add the wet mixture to the dry ingredients. Stir gently until no dry pockets remain (avoid overmixing).
Pour & bake – Transfer the batter to the prepared pan. Bake for 25–28 minutes, or until a toothpick inserted in the center comes out clean.
Cool & serve – Let the cake cool slightly before slicing. Serve warm, room temperature, or chilled with your favorite toppings.