
This is one of the most silky smooth frosting for cakes and cupcakes. The Italian meringue buttercream. I must say though that this batch showing on the photos did cause me problems I had to make it over five times to get it right. My problem was when I was adding the sugar syrup to the beaten eggwhites. It turned into a milky soup… that have never happend to me before and the only thing that made it ok was simply to buy new fresh eggwhites and start over again with the sugar syrup. So I was very happy it happend before the butter was added.
Italian meringue buttercream (IMBC).
Makes 8 cups.
1/2 cup of cold water (120ml)
2 1/4 cups of caster sugar (530ml)
1 cup of eggwhites (10) I use pasturized eggwhites only!
1 1/2 pound of soft unsalted butter (680gr)
1 tsp of vanilla extract
Kitchen stand mixer
First set the timer on 7 mins & pour the eggwhites into the kitchen mixer with whisk attachment.
Step 1:
Place sugar & water in a casserole and bring it to the boil and start the timer.
Note: I like to turn down the heat just a bit so the syrup dont get brown
Step 2:
When the sugar syrup has been boiling for 5 mins. Start the kitchen mixer on full speed and whisk the eggwhites for the last 2 mins. When the timer is up the sugar syrup is done. With the mixer still going on high speed slowly pour the hot syrup down the side of the mixing bowl.
Be carefull not to get burned.
Step 3:
When all sugar syrup has been added it should look like thick cream. Stop the mixer and change for the paddle attachment. To avoid meringue splatter all over your kitchen place a clean tea towel over the mixer. Set the timer on 10 mins and beat on high speed. This is how long it takes in my mixer for the mixing bowl to be cool to the touch.
After 10 mins. You should now have a lovely thick meringue like on the photo.

Step 4:
Now its time to add the butter. Start the mixer on high speed and with a knife cut pieces of the butter and add it to the meringue. When all butter is added it will not take long for mixture to turn into nice thick smoothe buttercream. When that happend slow down the mixer and add 1 tsp of vanilla extract. Stop the mixer and scrape down the bowl and start again. I do this two times. You should now have a bowl full of lovely Italian meringue buttercream.

Note: If the IMBC wont combine just continue to whip whip whip. It will eventually get smoothe. If you are still having problems, put the whole bowl with paddle attachment into the fridge and let it “cool” down a bit and then whip it again.
Also if you have taken it out from the fridge or freezer then bring it back to room temprature and whip it smoothe before use.
Flavour options:
Raspberry: 1/4 cup of raspberry puré or more pr. 2 cups of IMBC
Lemon Curd: 1/2 cup of Lemon Curd pr. 2 cups of IMBC
Chocolate: 2-3 oz of melted chocolate, cooled down to 98 F, pr. 1 cup of IMBC
Coffee: 2 tbsp of instant coffee mixed with 2 tbsp of warm (not boiling) water pr 3 cups of IMBC
See a video from CakeLove making IMBC here and see how Dyann Bakes make Swiss meringue buttercream here
Happy Caking
Louise