We tried BBQ sauce once it had a good taste, sometimes we add wine to give a good taste,for the meat we like Flanken with bone.
i read a recipe that used a small pastrami roast it was unbelievable BUT very fatty
it all depends how everyone like the taste, we like it with Ketchup
my in-laws make it more spicier and no ketchup they add chickpeas to it.
for kishka we add the parve one bec the meat one makes the chulent very oily
we must have tried many different ways to make chulent