There is definitely more to it than just the Tiramisu flavouring I presume. VW's Tiramisu is sweet and creamy, I think that Tiramisu flavouring isn't very sweet on it's own. I have found this recipe by HIC called "HICS Extra Smooth Tiramisu Cream", it sounds a lot like what me and whodat are looking for.
Also I have mixed up some of HIC's "Tiramisu Cheesecake". It is a very simple recipe. .5% of FA Tiramisu and 3% of TFA Cheesecake with graham crust. It is good, but does not have the sweetness I am looking for. I have added 3% TFA Marshmallow to it to see if it sweetens it up.