I did not see any at the Neihu Costco half an hour ago. They had Mascarpone btw, $195 for 500g.
The Minquan bridge DIY baking store (Yixing) was out, but Dragonbabe said she saw someone unloading a case marked sour cream there as we were leaving. Call first if you want to confirm availability and price at Yixing: 2760-8115
Take a cup of cream (you know those boxes of whipping cream) and add a few drops of lemon juice and stir. Let sit for a half hour or a few hours in the fridge. And now you can play havoc with your diet…try it a few times and play around with hw much of lemon juice you want to put in the cream.
BTW, I already do not like the taste of the “homemade” sour cream they sell in the ol’ country. Tried like 5 different brands and they were all yucky. Spoiled I am with that bland, tasteles, Aussie glorious stuff. Reminds me of The Blob.
I get mine at the sour cream market.
Ona more serious not, do a search for P and P food and spice. Last I saw, they had the small containers.
I usually get mine at COSCO and although oversized, I divide it up and put a few dribbles of lemon juice in the smaller container and cover tightly with plastic wrap. It will at least double the shelf life if properly refrigerated. While at COSTCO, better buy a 10 pound bag of spudes. Me think you might need them.
Carrefour has small tubs of ‘crème fraîche épaisse’ which is basically French-style sour cream. You might not want it for your Mexican food or dips, but it works great for soups, baking, etc. The plus is that you can buy small tubs.