Combine cottage cheese, an egg, sugar, semolina, salt, and raisins in a bowl. Mix well with a fork. Don’t use a blender or food processor; the mixture will become too melty when you cook syrnyky.
Leave the mixture to rest for 10 minutes until the semolina swells.
Gently knead the dough with a hand.
Dust a cutting board with flour. Place the dough on the board and roll it into a loaf of oblong shape.
Cut the loaf into several slices of equal sizes.
Fine-tune the form slightly with both hands, making the edges round and perfect.
Preheat the skillet, reduce the heat to medium and add a tablespoon of vegetable oil. Place syrnyky in the skillet and leave them on one side for about a minute. With a spatula, flip syrnyky over and fry the other side for 30-45 seconds.
Transfer the syrnyky onto a plate lined with a paper towel to absorb excess oil.
To complete the process, place all the syrnyky back in the skillet, cover them with the lid, and let them sit over low heat for 5 minutes. (Clean the skillet, dry it so the surface is clean, and add some vegetable oil and butter). This step is essential to ensure that syrnyky are also ready from the inside. Alternatively, you can place syrnyky on a baking pan and bake them in the oven for 5-10 minutes.
Place syrnyky on a plate and brush them with butter. Serve warm and refrigerate leftovers.