**Instructions:**
- Preheat oven to 350°F (175°C). Grease and flour a cake pan.
- Whisk flour, baking powder, and salt in a bowl.
- Cream butter and sugar until fluffy. Add eggs one at a time, beating well.
- Mix in vanilla extract.
- Add dry ingredients alternately with milk, beginning and ending with dry.
- Pour batter into the pan and smooth the top.
- Bake for 30-35 min or until a toothpick comes out clean.
- Cool in the pan for 10 min, then transfer to a wire rack to cool.
