Preheat your oven to 350°F (175°C).
Grease and flour a 9x13 inch baking pan.
In a large bowl, cream the softened butter and sugar together until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the vanilla extract and mix until well combined.
In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
Gradually add the dry ingredients to the butter mixture, alternating with the buttermilk.
Add food coloring to the batter until desired pink hue is achieved.
Pour the batter into the prepared baking pan and spread it evenly.
Bake in the preheated oven for 25-30 minutes or until a toothpick inserted comes out clean.
Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack.
Once cooled completely, slice into squares and serve as desired.
