O. M. G. This is so good, and so worth the hassle. Bear in mind that since it calls for fresh strawberries, the quality of your strawberry is going to be really important. You may want to save this one for the summer time. But, one reason I wanted to post this now is because it’s pretty common for grocery stores to get shipments of decent quality strawberries for Valentine’s Day. So if you’re looking for a seasonally appropriate frosting, this may be a great pick.
First, set out a stick of butter to soften and prepare your strawberries. I first cup them up, discarding the stems and slicing the rest into manageable pieces. My pieces measure up to about 1/2 cup strawberries. (I would buy at least a pint, but probably two, just to make sure you have enough.) Then I use the back of a spoon to push the strawberry chunks through a fine-mesh sieve. The strawberry goo that comes out the other side of the sieve is exactly what you’re looking for.
Start out with 1/2 cup (1 stick) softened butter. Add it to your mixing bowl with 2 teaspoons vanilla extract and a pinch of salt. Beat with a hand mixer until soft and creamy. Then alternately add 4 cups powdered sugar and the strawberry goo, using the hand mixer to incorporate the new additions. That should do it, but of course you could add extra sugar, strawberries, or vanilla to your taste preference.
The frosting is a beautiful light pink color, usually with some pink specks in it. But since you pressed the strawberries through the sieve, it’s nice and smooth.
I topped vanilla cupcakes with this frosting for a pink-themed bridal shower:
And I topped my rainbow tie-dye cake with some strawberry frosting: