@mycelia I’ve never tried but I don’t see why it couldn’t work! The vegan baking butter I normally use is 80% fat, so I’d try 80% oil (mix into the dry ingredients first) and 20% nondairy milk, aquafaba, juice or water. This is mostly to help the clump formation in case all-oil would be too sandy. Some spices and salt should also help make up for not having the buttery flavour.