Steps:

• Beat the softened butter to a soft and even consistency. Add the orange juice, if using, then the icing sugar. Cream until you have a smooth, soft buttercream consistency.
• Add the cream cheese and work it in – don’t beat it in, just slowly mix with a wooden spoon. Depending on how soft the mixture is, you may want to put it in the fridge for 10 mins at this point. If it’s runny, it will firm up again. It should be spreadable and not run off the cake.

Steps:

• Beat the icing sugar , butter and cocoa power together in a free standing electric mixer with a paddle attachment (or use a hald held electric whisk)on medium-slow speed until the mixture comes together and is well mixed .
• Turn the mixerdown to slow speed. Add the milk to the butter mixture a couple of teaspoons at a time . Once all the milk has been incorporated , turn the mixer up to high speed. Continue beating until the frosting is light and fluffy , about 5 minutes . The longer the frosting is beaten, the fluffier and the lighter it becomes.