Let’s start with the meat. Rather than your basic dog, up the ante by grilling up something more robust, such as bratwurst sausages or peppery kielbasas. They are bigger, meatier and way more flavorful. For toppings, we went decidedly German, filling our buns with sauerkraut, cheese and sauteed apple. And of course, it doesn’t hurt that these grinders pair up so well with beer …