The soybean seeds were processed into flour using the method of IITA (1990). The process ensures effective removal of most anti-nutritional factors. Soybean seeds were sorted and roasted until light brown. The roasted seeds were boiled for 20min. Thereafter, seeds were drained and dried at 100-120°C for 3h. The dried seeds were milled into flour. The flours were screened through a 0.25mm sieve and stored at 4°C in a refrigerator to prevent spoilage particularly rancidity until usage. Wheat flour was mixed with soy flour and biscuits