3.2 carbs per half cup comes to 1/4 of a carb per serving. I have a bakery and it’s very important for me to get my macros right. I check and double check everything. I check against what I see on the package. Outside of sending my baking off to the government to check, this is the best I can do.

I am truly NOT trying to be argumentative .. but heavy cream actually has .4 carbs per Tbl. That means 3.2 carbs per 1/2cup. Because the serving size of cream is less than .5 carb, then manufacturers are not legally required to list the carbs on the label. But they do add up. Also depending on the choc chips you use.. they are up to 20 net carbs per cup.. from my experience, I get closer results when I calculate the macros from each of the specific ingredients I’m using. ( No offense to those who love the MFP app- )
I do love your recipes and sincerely appreciate your hard work and willingness to share the results with us!
Thank for helping us all on our low carb journey..

It’s because the fiber in the ganache. Heavy cream has NO carbs. You can take this recipe through myfitnesspal and see yourself. The actual carbs are 4 and the fiber is 8, thus the negative. There are 14 servings.