For this last rendition of the birthday cake I wanted a swiss/italian meringue buttercream but without the work. So it was blessed fortune that I stumbled across this Martha Stewart cake recipe that included a frosting called instant buttercream. Instead of making the egg white and sugar mixture from scratch you use marshmallow fluff. Genius! Because what is marshmallow fluff but egg whites, sugar and some corn syrup? (remember that part because it's important later on).
adapted from Martha Stewart
2 sticks of salted butter, softened - I really feel this needs the salt. In fact I use salted butter exclusively. Take me away culinary police.
2 jars of marshmallow fluff - about 7ish ounces each
1 tablespoon vanilla
Place the softened butter in the mixer and beat until it's slightly whipped.
Then add your pristinely white fluff. I love the look of this stuff. You really don't appreciate the effort in meringue based products until you've made them yourself. I grew up making dominican frosting (known as suspiro) which is a meringue frosting and let me tell you that the person who decided a meringue frosting was going to be the IT thing in the tropics wasn't right in the head. It's delicious but tropical humidity and meringue don't mix.
But look, instant meringue-ish product in a jar!
Add the fluff and the vanilla then whip for several minutes or until the frosting is fluffy, white and well mixed. You'll need to scrape down the sides and bottom of the bowl about halfway.
Look. At. That. If I told you that I didn't stick my finger in there to taste various times I'd be lying. I'm not a frosting person but this stuff is addictive.
Now to get this cake put together. Place a dab of frosting on the cakeplate to anchor the layers.
Then on goes your first layer. I placed the bottom layer right side up.
Spread that with a nice luscious layer of frosting.
Then tack on the second layer (I went for right side down) and start spreading the rest of the buttercream starting from the top.
There you have it. I did go on to decorate the cake but my rendition of a fiery cake is something only a six year old can love. I'll spare you the photos. While absolutely delicious, this frosting is not one to use for piping. Due to the corn syrup in the fluff, the frosting is slightly goopier than a traditional meringue based butterecream so it's not ideal for fancy piping. I just swirl it on thick and throw some sprinkles on it. However, for a looks-like-homemade cake (and really that's what all cakes aspire to be) this is definitely a delicious and easy alternative. If you need to do any kind of intricate piping then swiss/italian meringue buttercreams are the appropriate choice.