Sour Cream Substitution June 13, 2015 handmadestitchbystitch Reference, Substitutionscake, king arthur flour, milk, reference, sour cream, substitution, vinegar From King Arthur Flour 1 c sour cream = 1 c milk + 1 TBSP vinegar, mix and let sit for 5 min. Share this:EmailPrintRedditTwitterFacebookTumblrPinterestLinkedInLike Loading... Related