The purposes of this study were 1) to study the basic recipe of Khanom Gleeb- Lamduan. 2) To study the types of Job’s Tears flour used as a substitute for wheat flour in the recipe of Khanom Gleeb-Lamduan. 3) To study the quantity of supplemented xanthan gum was studied in the recipe of Khanom Gleeb-Lamduan from Job’s Tears flour to improve texture. 4) To study the chemical composition of Khanom Gleeb-Lamduan from Job’s Tears flour. The results of the sensory quality evaluation with a 9-point Hedonic scale favorability score by 30 taste panelists found that the basic formula of Khanom Gleeb-Lamduan that was selected contained 55% of the ingredients including wheat flour soybean oil and icing sugar 27.50% and 17.50% respectively. The results of a study on the type of Job’s Tears flour suitable for substitute for wheat flour for the development of gluten-free Khanom Gleeb- Lamduan recipe. It was found that Khanom Gleeb-Lamduan made from dried milled job’s Tears flour had a higher score on the tasters favor than that made from commercial milled Job’s Tears flour and boiled Job’s Tears flour (p≤0.05). Tasters rated their preference for Khanom Gleeb-Lamduan from Jobs Tears flour with added xanthan gum to improve texture characteristics in the amount of 1% of millet flour preferring it over Khanom Gleeb-Lamduan with Jobs Tears flour added at the rate. 0.5% and at a rate of 2%. Khanom Gleeb-Lamduan had average liking scores in terms of appearance color smell taste texture (crusty) and overall liking was 7.33 7.40 7.86 7.53 7.76 and 8.10 respectively which were in moderate to high liking level. The approximate chemical composition of 100 g of Khanom Gleeb-Lamduan from JobsbTears flour contains 6.75 g of protein 27.46 g of fat 2.64 g of moisture 62.21 g of carbohydrates 0.94 g of ash and 522.98 kcal of energy which is similar to that of the basic recipe of Khanom Gleeb-Lamduan using wheat flour but it has a higher ash content than the basic formula. This is because Jobs Tears contains high amounts of many minerals. Khanom Gleeb-Lamduan from Jobs Tears flour is therefore a healthy snack for general consumers. In particular consumers with gluten intolerance can also eat it.

This investigation aims to developing a recipe for making Gleb-Lum-Duan (Thai shortbread cookies) with black sesame from gluten-free flour by determining the appropriate ratio of glutinous flour to rice flour. According to the results from sensory quality evaluation of 50 panelist who were ordinary people using the nine-point hedonic scale it was found that Gleb-Lum-Duan having the ratio of glutinous flour to rice flour as 40:60 had the highest acceptance rating among the tasters. The results from adding texturizing additives in the gluten-free Gleb-Lum-Duan showed that the tasters panelists gave the highest acceptance rating for Gleb-Lum-Duan which xanthan gum on flavor smell texture (fracturability) and overall preference. For the amount of black sesame added in gluten-free Gleb-Lum-Duan the panelist gave the highest acceptance rating for Gleb-Lum-Duan which included 20% black sesame based on color smell taste texture (fracturability) and overall preference. For color of product the L* a* and b* values were 68.83 0.09 and 6.97 respectively. Increasing the amount of black sesame resulted in increasing a* value and decreasing b* value. The amount of free water differed significantly (p≤0.05). Increasing the amount of black sesame was found to decrease hardness (p≤0.05). Gleb-Lum-Duan with black sesame from gluten-free flour included carbohydrates protein ash fat and moisture of 63.69% 3.01% 0.95% 31.19% and 1.16% respectively. A group of 100 ordinary consumers identified taste and nutritional value of gluten-free Gleb-Lum-Duan mixed black sesame as the most important factors