Flour confectionery semi-finished products, which are delicious and have a high nutritional value, are always popular with people of all ages. Cake is one of the favorites and most common flour confectionery products for consumers all over the world. Wheat flour is one of the main ingredients used for the preparation of biscuit semi-finished products, along with sugar, egg, preservatives, flavorings, etc. Partial or complete replacement of wheat flour is always desirable to make the product more nutritious. Replacing wheat flour with other different flour improves the functional and nutritional properties of Brownie semi-finished products. The technological parameters and the recipe for the production of semi-finished Brownie products related to low-calorie products have been developed. Wheat flour was replaced with rice, corn and flaxseed flour, the ratios of which were derived as a result of experimental studies of the recipe. Butter was replaced with soft cottage cheese, which reduced the caloric content of the product. Yogurt has been replaced with a fruit supplement (in the form of frozen apple pomace) to increase nutritional value. Instead of sugar, the sweetener "Prebiosweet" is used, which includes the sweetener erythritol, lactulose, sweetener stevia extract. In contrast to the classical production technology in the developed one: the number of technological operations is reduced; the operation of whipping the egg mixture is excluded. Mixing of ingredients was carried out in two stages: at the first stage, all dry components were mixed; at the second stage, all liquid components were mixed. Then the liquid and dry mixtures were mixed to a homogeneous consistency. The duration of mixing was reduced to 2-3 minutes. and it was carried out at low speeds of the kneading machine. The Brownie semi-finished product was baked at a temperature of 175 ℃ for 60 minutes. The addition of rice, corn and flax flour will expand the diet of people who monitor their health, apple squeezes.