using a stand mixer with the whisk attachment, mix the butter, sugar & via on low until fully combined (about 3 minutes) then add the vanilla extract and food coloring (if desired) the frosting will be a pale pink without the dye, but i wanted to amp it up a little bit more, so i added about 5 drops of hot pink gel coloring.
then add 1 tablespoon of heavy cream, or more depending on the desired consistency.
Recipe by the modern barista at https://themodernbarista.com/index.php/2015/08/04/strawberry-lemonade-via-buttercream-frosting/