I also added just a regular strawberry butter cream on top. Recipe below.
2 sticks unsalted butter, softened
1 tsp vanilla {give or take}
2 T strawberry puree
Powdered sugar {Once you like how it looks}
Cream the butter and vanilla in a mixing bowl. I made the strawberry puree in my Magic Bullet. I just cut up 3 or 4 strawberries and pulsed them until they were liquified. It came out to about 2 tablespoons. Add the puree. Make sure they are well combined because I have had it separate on me. Lastly, add the powdered sugar until you like to consistency and taste. I usually add about a cup at a time.
My mom always said to taste your food before you serve it to someone. That may be the reason that I sometimes don't have exact measurements. So Sorry :-P
Final product!