If you can't eat dairy products, you no longer need to give up the creamy pleasures of sour cream.
Creamy Tomato Basil Zucchini "Linguini" Replace the chicken with mushroom or tofu and the stock for vegetable and yoghurt for a vegan option.
Looking for a non dairy sour cream substitute? This smooth, creamy, light, airy and tangy cashew sour cream might very well be your answer! I used only 1 tablespoon vinegar.
Vegan Kitchen Hack: Non-Dairy "Sour Cream" :: YummyMummyClub.ca
Real Deal Homemade Non-Dairy Sour Cream - Eat Within Your Means
Vegan Sour Cream Cashew Sour Cream - Non-Dairy Sour Cream Alternative/Substitute.