Place all the ingredients in a measuring jug and blend together with an immersion blender until thick, smooth and creamy. Alternatively, blend in a high speed blender.
125 ml soy milk, 180 g coconut oil, ½ teaspoon lemon juice, ½ teaspoon fine sea salt, 1 tablespoon white miso paste, 1 teaspoon liquid lecithin
Pour into a butter mould or empty margarine tub and refrigerate for 8 hours.
Serve cold or at room temperature for a spreadable vegan butter.