Preheat oven to 375F degrees. Gather the ingredients. Make sure that egg and kefir are room-temperature and butter is softened.
In a large mixing bowl, whisk the egg, add the 4 tablespoons of the softened butter. In a measuring cup, add kefir and baking powder, mix vigorously till bubbles appear, and the mixture will become foamy.
To the bowl with the egg mixture, add kefir, add 1/4 cup of sugar, and 1 tablespoon of cinnamon. Mix till blended. Slowly start adding two cups of flour.
Start adding the third cup of the flour and slowly kneading it in the dough. Form the ball.
On a large surface, sprinkle the flour and roll out the dough, flipping it several times while rolling. If the dough is still sticky, add more flour. Don't overdo it since spelt flour is dense, and we want to have soft cinnamon rolls. Using a rolling pin, roll to create a rectangular shape. Evenly spread 7 tablespoons of butter.
In a small bowl mix, 1/2 cup of sugar with 2 tablespoons of cinnamon and generously sprinkle the mixture on top of the dough. Use a knife or palms of your hands to even out the mixture.
Start creating a roll slightly pressing while rolling in. Roll gently, and make sure there is no empty space in the layers of the roll.
Slice in half. Use a sharp knife and make cuts slowly. Then slice each half in half and create a total of 12 equally sized rolls.
Arrange in the baking dish lined with parchment paper. The rolls will expand, so make sure there is some space in between the rolls. Bake on the middle shelf for 30 minutes till rolls turn slightly golden. Optional step. Use some frosting if desired.