Peel and mash the garlic. Mix with breadcrumbs, mustard, yogurt, salt and pepper. Wash, finely chop the herbs and mix in. Set the oven to 200 ° C (convection 180 ° C, gas level 3-4).
Rinse meat with cold water and pat dry. Rub the underside thinly with the herb paste and place on a tray or on a piece of aluminum foil. Spread the top thickly with the paste. Bake the chicken breasts for about 30 minutes.