Butter stick Abuelita Chocolate (or Ibarra) Powdered sugar Milk
Whip the softened butter. Shave the chocolate into the mixing bowl. Mix together, and scrape down the sides. Add the powdered sugar and mix.
Scrape down the sides. Add powdered sugar and mix again. This is done in stages so as to fully incorporate everything.
Add milk only enough to fully incorporate. Mix to combine. This frosting comes together in minutes.
Before aplying the frosting, be sure the cake is completely cool before spreading it. A warm cake and cool frosting don’t play nice together. The cake will crumble on you.