Herb and Apple Bread Pudding

INGREDIENTS

3 oz

Pancetta

1 1/2 cups

Celery, medium

1/2 cup

Flat-leaf parsley, fresh leaves

Granny smith apple

2 tbsp

Rosemary, fresh leaves

2 cups

Yellow onions

Eggs, large

1 1/4 cups

Chicken stock

Kosher salt and freshly ground pepper

8 cups

(3/4-inch/2-cm dice) country bread cubes

4 tbsp

(2 oz./60 g) unsalted butter, unsalted

2 1/2 cups

Heavy cream

1/2 cup

Sherry, medium or dry

2 cups

(8 oz./245 g) lightly packed grated gruyère cheese