I wouldn’t use this to make smoothies or a latte but it’s fine in tea and coffee, and for sauces and baking. Makes about 1 litre.
1 cup soya flour
3 cups cold water
Place the flour and water in a saucepan and stir or whisk thoroughly whilst bringing to the boil. Simmer for 20 minutes. Let it cool then strain through muslin.
If you want something closer to shop-bought soya milk then experiment with a pinch of salt, a teaspoon of sugar, and a tablespoon of vegetable oil.