Oat milk is pretty expensive (nearly £2 a litre), but oats are cheap, so I thought I’d make my own. Google pulls up dozens of different recipes with variable reviews, some using rolled oats, some groats, some oatmeal, and a host of additives. However, the ingredients of Oatly are just “water, oats (10%), sea salt”, so I decided to invent my own, simple recipe with those ingredients. All I wanted was something to take the bitter edge off black tea, without the overbearing flavour of soya milk, sweetness or added flavouring. This does the job. Makes about 1 l, for about 20 p.
100 g rolled oats (i.e. porridge oats)
1 l water
pinch sea salt
Soak the oats in the water with a pinch of sea salt for 4 to 8 hours; stir once or twice during soaking.
Liquidize until homogenous.
Strain through a sieve or coarse muslin, then strain again through a fine sieve, tea strainer or fine muslin.
Lasts 4-5 days in a refrigerator (maybe longer, not tested). Shake well before each use.
At the moment I’m just throwing the oat slurry onto the compost, but it should be possible to utilize it in some way, maybe mix with honey and bake into biscuits.