Refrigerate: Location the container of blueberry buttercream frosting inside the fridge. The cool temperature will help prolong its shelf lifestyle and maintain its high quality. three. Caster / superfine sugar has finer grains so it dissolves effortlessly when whipped While using the eggs. Even so, granulated / common white sugar https://remingtonurdmu.blogkoo.com/5-simple-techniques-for-how-to-make-blueberry-frosting-blue-50994423