I used to live in Britain and I'm familiar with using Double Cream (48%+ fat) in all my recipes. However I moved to Canada a year ago and double cream doesn't seem to exist in North America. This has resulted in many of my recipes failing with the 35% heavy whipping cream as it doesn't whip quite thick enough; it won't hold up my cake tiers, and it goes oddly foamy in my pastries. Yet I've seen strongly thickened cream in stores and bakeries, so how are they thickening it?
I've tried googling this and have tried a few things, such as boiling the cream, and I've also tried adding corn starch (unless you want dry floury cream, never do this). I've also seen a couple of mentions of gelatin and stabilizers but don't know if that's the correct direction.
I'm starting to think I should buy my own cow. Any cream experts out there who can help?