I'm gonna make some IMBC for the first time and I want to try a hazelnut version. Does anyone have a good recipe? I was gonna use Shirley's IMBC. Has anyone done hazelnut flavoring on this recipe? I'd prefer to try a recipe someone's actually used rather than experiment. TIA.

Sounds delish!  Hope someone has some experience.  IMBC and SMBC are lovely for subtle flavors.  What brand of flavoring will you be using?

Im going to be making a hazelnut cake for my grandmothers birthday next week. I have never tried it but "Crumboss" on youtube has a reese cup cake that she uses her smbc and she just mixed in some nutella with it. It sounds really good but it will make it a light brown color. I think Crumboss uses 1 cup nutella to 3 cups smbc. Hope this helps.

I make smbc and use nutella at the end. I just use to my taste. I make  p-nut butter smbc the same way. Anything you add, you add at the end. hth

Your very welcome! Please let us know how it turns out. I have never added nutella to smbc but I have added it to my american buttercream before and it is delish.
 

I normally make SMBC as I think it is easier but, whichever one you use you can just put in Nutella to taste or you can use the Torani Hazelnut flavored syrup.  I keep adding Nutella until I think it is right and I use the syrup as part of my water content for the cooking part.  Wither one tastes really good.

I used hazelnuts to flavor some French buttercream that I used as a buche filling at Christmas.  I made a praline paste and then mixed it into the buttercream.  It is not perfectly smooth by any means but I was just using it as a filling.  It was SO good.  Find the praline paste recipe at joepastry.com.