Place all the ingredients in a cup or small bowl. Blend with an immersion blender until thick and creamy. Alternatively blend in a high speed blender until thick and creamy.
110 ml soy milk, 250 ml sunflower oil, 2 teaspoon rice vinegar, ½ teaspoon fine sea salt, ¼ teaspoon dijon mustard, 1 tablespoon extra virgin olive oil
Transfer to a clean jar with tight fitting lid or an airtight container and store in the fridge or use straight away.
Notes
Note 1: Room temp ingredients are super important for the success of this recipe. If your soy milk is fridge cold and your oil is room temperature, the mixture will refuse to emulsify, which is the process that makes mayonnaise thick and creamy. Be sure to let all your ingredients come to room temperature before starting. Note 2: The type of oil used in this recipe is super important. Oils vary in acidity, with varieties like extra virgin olive oil being high in oleic acid, a healthy fatty acid. This is great for health reasons, but bad for mayonnaise because it makes the mixture less stable and more liable to split, which will result in a failed mayonnaise that refuses to thicken. This is why the bulk of the oil used in this recipe is a simple neutral oil, with just a small amount of extra virgin olive oil added for flavour. Examples of neutral oils are sunflower, canola (or rapeseed), vegetable, avocado, grapeseed or peanut oils. These will all work well for this recipe but each will provide a different flavour.