Cut the chicken breasts into bite-sized cubes, fry them in hot oil and season with salt and pepper. Set aside and let cool.
Peel the carrot and grate finely. Peel the horseradish and grate finely.
Mix the vinegar, mustard, maple syrup and horseradish together well. In a bowl, mix the cottage cheese, carrot and horseradish mixture well and season with salt and pepper. Finally fold in the chicken breast cubes and let everything stand in the refrigerator for about half an hour.