Preheat your oven to 350°F (175°C).

Grease and flour a heart-shaped cake pan.

Cream together butter and sugar in a large bowl until light and fluffy.

Add eggs one at a time, beating well after each addition.

Mix in milk and vanilla extract, blending well to create a smooth batter.

Whisk together flour, baking powder, and salt in another bowl.

Gradually add the dry ingredients to the wet mixture, mixing gently until just combined.

Mix in red food coloring if desired.

Pour batter into the prepared pan.

Bake for 30-35 minutes or until a toothpick inserted comes out clean.

Allow to cool in the pan for about 10 minutes.

Transfer to a wire rack to cool completely before frosting.

Decorate the cooled cake with your favorite frosting.