Rant: my sister watched me frost one cake and told me my buttercream looked like spackle
She came over while I was doing a birthday cake for my kid and just stood there watching me scrape the sides over and over. She does wedding cakes in Portland and she flat out said the frosting looked like drywall patch because my butter was too cold. So now I let the butter sit out until it gives to a poke and I beat it for a solid 8 minutes before anything else goes in. The difference on the last two cakes is honestly kind of annoying. How long do you all let your butter warm up before you start?