My blog has recipes for strawberry-filled cake and cupcakes, as well as strawberry cookie sandwiches. Each of those posts contains a guide for making strawberry cream cheese frosting. The upcoming slides have the main steps.
In the bowl of a stand mixer fitted with the paddle attachment — or in a large mixing bowl using an electric hand mixer — beat the cream cheese until smooth, about 2 minutes. Add the butter and mix for another 1 minute or until fully combined.