A fat base is described comprising a mixture containing from 4 to 20% C12:0 lauric acid, preferentially from 5 to 17%, from 30 to 50% C16:0 palmitic acid, preferentially from 34 to 45%, and 4 to 10% C18:0 stearic acid, preferentially from 4.5 to 7.5%, and from 20 to 40% C18:1 oleic acid, preferentially from 25 to 35%, the balance being a mixture of other C4:0 to C22:0 fatty acids, having application, for example, as filling for wafer biscuits.