To create the ultimate French Butter Cake, follow these simple steps for impeccable results:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan.
2. Cream the Butter and Sugar: In a large mixing bowl, cream the softened butter and granulated sugar until light and fluffy.
3. Add Eggs and Vanilla: Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract until well combined.
4. Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking powder, and salt.
5. Mix Dry and Wet Ingredients: Gradually add the dry ingredients to the butter mixture, alternating with the whole milk. Start and finish with the flour mixture, mixing until just combined.
6. Pour Batter: Pour the batter into the prepared cake pan, smoothing the top with a spatula.
7. Bake the Cake: Place the cake in the preheated oven and bake for 30-35 minutes or until a toothpick inserted into the center comes out clean.
8. Cool the Cake: Once baked, remove the cake from the oven. Let it cool in the pan for 15-20 minutes, then transfer it to a wire rack to cool completely.
9. Decorate: Once cool, you can serve it as is or add your favorite frosting, ganache, or fresh fruit.

By following these steps, you will create an incredible French Butter Cake that will tantalize the taste buds of everyone at your gathering!