The present invention relates to a method of preparing a processed blend from two or more fresh plant materials, including a first fresh plant material containing lipophilic vitamin and a second fresh plant material containing hydrophilic vitamin; said process comprising: A. a first pre-treatment regime comprising: •providing pieces of the first fresh plant material; •cooking said pieces; comminuting the cooked pieces to produce a lipophilic vitamin containing puree; and said first pre-treatment regime additionally comprising the addition of oil; B. a second pre-treatment regime comprising: •providing pieces of the second fresh plant material; and •blanching said pieces to produce a hydrophilic vitamin containing mass; C. combining the lipophilic vitamin containing puree and the hydrophilic vitamin containing mass; wherein the lipophilic vitamin containing puree is homogenised at a high pressure before or after being combined with the hydrophilic vitamin containing mass. The process of the present invention offers the advantage that content as well as oral bioavailability of lipophilic and hydrophilic vitamins contained in the blend of plant materials are maximized.