This was not great. The apple taste did not mix in well and it made for even worse leftovers. Use this bread pudding recipe if you're looking for a delicious savory bread pudding: http://www.myrecipes.com/recipe/sausage-caramelized-onion-bread-pudding-10000001924675/
We found this quite delicious, and all the flavors blended perfectly to our tastes. I did add about 1/2 tsp. dried sage to the mixture. I used a sweet onion and would advise chopping the apple into fairly small pieces. I served this with roasted beets and a tart salad. Very fall flavors! This is also a delicious leftover sliced thin, and warmed in the toaster oven for breakfast.