Can I substitute sour cream for the plain yogurt in the Apple And Cinnamon Muffins, or is there a better substitute?
Nigella's Apple And Cinnamon Muffins (from KITCHEN) are perfect for breakfast (or any other time) and a good way to use up wrinkled apples that have been in the fruit bowl just a little too long. Muffins often contain liquids such as milk, and in this case the ingredients include runny plain yogurt. The slight tang of the yogurt helps to balance the sweetness of the apples.
You need the yogurt to be slightly runny so that the muffin batter itself isn't too thick. You could use sour cream or crème fraîche, but a mixture of 30ml (2 tablespoons) sour cream and 30ml (2 tablespoons) milk would be better as the milk will thin the sour cream slightly. Otherwise you could use a plain kefir or plain drinking yogurt. We would avoid flavoured versions as these usually contain added sugar.