Place the butter in a large mixer bowl and beat on high until light and fluffy.
Add the vanilla and salt, mix until just combined.
Slowly beat in the confectioner’s sugar, 1 cup at a time making sure it is completely incorporated each time before adding the next cup.
Fold in the strawberry puree or jam.
Beat in the food color- if using.
Combine the strawberries and sugar in a small food processor or blender and pulse until it reaches the consistency of thin jam.
