Can you substitute sour cream for a recipe calling for sour half and half?

Yes, you can substitute sour cream for sour half and half in a recipe. Sour half and half is a mixture of half-and-half and an acid, like lemon juice or vinegar, which gives it a tangy flavor similar to sour cream. Just keep in mind that sour cream is thicker and richer, so you may want to adjust the quantity slightly or add a bit of milk to achieve the desired consistency.