1. A filling that retains its properties during baking and storage, which contains edible oil (s) and / or fat (s) in an amount of from 2 wt.% To 20 wt.%, Water from 10 wt.% To 35 wt.%, as well as thermogel (s), ionic (e) gel (s) and a material containing whey protein, the filling containing a pre-prepared mixture, the method of preparation of which includes: mixing the material containing whey protein with edible oils and / or fats； adding a certain amount of water to the resulting mixture and heating to a temperature of 65 ° C to 95 ° C for a time that is sufficient to obtain an emulsified mixture； and lowering the temperature of the emulsified mixture. ! 2. The filling according to claim 1, in which the method of obtaining the preliminary mixture includes adding a certain amount of water to the resulting mixture and heating to a temperature of from 65 ° C to 95 ° C for a period of 5 minutes to 60 minutes. ! 3. The filling according to claim 1, in which the method of obtaining the preliminary mixture comprises adding water in a weight ratio of oils to water from 3: 1 to 1: 3. ! 4. The filling according to claim 1, in which the material containing whey protein is used in such an amount that the content of whey protein in the filling is from 0.5 wt.% To 2.5 wt.%. ! 5. The filling according to claim 1, in which gels having a gelation temperature in the range from 38 ° C to 55 ° C can be used as thermogels. ! 6. The filling according to claim 1, in which the thermogel is a cellulose ether. ! 7. The filling according to claim 1, in which the cellulose ether is selected from methyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and combinations thereof. ! 8. The filling according to claim 1, in which the ionic gel is selected from micro1. Начинка, сохраняющая свои свойства при выпекании и хранении, которая содержит пищевое(ые) масло(а) и/или жир(ы) в количестве от 2 вес.% до 20 вес.%, воду от 10 вес.% до 35 вес.%, а также терм
