This is a kitchen hack that I use a lot because I never have buttermilk in my fridge and it isn’t always easy to find in supermarkets. It is often used in baking because it reacts with bicarbonate of soda to give a rise and used in things such as pancakes and red velvet cake and most crucially it makes cakes super moist.
Now you may never fear, your days of never having buttermilk are over, here are two really useful hacks to make your own / substitute. ⠀⠀⠀⠀⠀⠀⠀⠀⠀ .⠀⠀⠀⠀⠀⠀⠀⠀⠀ 1. 250ml milk and 1 level tablespoon of lemon juice. Mix together and leave for 5-10minutes (The longer you leave it, the more acidic it will become. You can keep it in the fridge if you want to make in advance). You can use any milk however I find full fat milk works a bit better. It does change colour and texture as it turns to a buttermilk. ⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀ 2. This isn't really making buttermilk, but works just the same because the yoghurt give you the acidity required. Mix 1/3 plain yoghurt with 2/3 semi skimmed milk. I’ve used various yoghurts, if you use a thicker llllkknGreek style, you may need more milk as buttermilk is a thinner texture.