
The final consistency of this buttercream is soft, but it holds its shape well due to the meringue powder. This recipe makes just enough buttercream to frost 15 medium-sized cupcakes rather lavishly, as shown in the photo.
Using a mixer, whip the butter until very light and fluffy. Slowly work in most of the icing sugar and meringue powder, then increase the speed until the mixture is well incorporated .
Add in about 3 tablespoons of the strawberry purée and mix well. Scrape down the bowl once or twice to ensure the colour is evenly distributed. Making buttercream is not an exact science. Add more strawberry puree if needed to get a more intense colour or flavour, or to soften the consistency. Conversely, if the buttercream seems too soft, you can add some more icing sugar to stiffen it up a bit.
The final consistency of the buttercream should be smooth and spreadable. If it's too stiff it tends to crack if being piped.
Making Strawberry Purée
If you don't have strawberry purée on hand, here's how to make some ahead of time. Ensure you cool the purée to room temperature before adding it to the buttercream to avoid melting the butter in it.
No sugar is required for this purée since the buttercream has more than enough sweetness to offset its tartness.
Strawberry Buttercream https://urbancottagelife.com/strawberry-buttercream/