I have blended silken tofu with a little lemon juice and olive oil and used it in
place of sour cream. It works wonderfully.
Here's the recipe:
Tofu Cream Cheese Alternative Recipe (Vegan, Gluten-Free, Nut-Free)
1 cup Firm Silken Tofu
2 Tablespoons Olive or Vegetable Oil
3 Tablespoons Lemon Juice or 2 Tablespoons Vinegar
½ teaspoon Sea Salt
Directions: Combine all ingredients in a blender and process until smooth. Pour into a bowl and chill. (from www.godairyfree.org)
I made a "sour cream" filled coffee cake for a potluck several years ago for an office full of non-vegetarians. They gobbled it up - and I never let them in on the secret!
I hope this helps,
Edited by: VEGFROG at: 1/26/2013 (12:06)