Knowing how long to cook chicken kababs is essential when cooking on a grill. Here are some tips for grilling a chicken kababs. The first step in grilling a kababs is to ensure that the pieces are evenly distributed with the marinade. If you want a juicy grilled chicken kababs, marinate the pieces in plain yogurt. The acid in yogurt breaks down the chicken protein while the sugars caramelize on the hot grill grates, giving the meat a beautiful grill mark.