Abstract: A manufacturing method for a plant-based water-soluble dry powder, comprising the steps of; preparing a first mixture by mixing water with oats; comminuting solid components in the first mixture; heating the first mixture to a temperature range between 60° - 70° C.; adding ?- and/or ?-amylases and incubating for at least 40 min at 60° - 70° C.; filtering the first mixture; adding liquid fat or oil to the first mixture in a ratio of 65 wt. - % of the first mixture and 35 wt% liquid fat or oil; and spray drying the mixture of first mixture and fat or oil.