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1
Preheat oven to 350 degrees.
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2
Slice the bread lengthwise into six pieces, each one as thick as an index finger.
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3
Slice the pickle lengthwise into six fingers.
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4
Cut each bacon slice in half crosswise.
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5
Place a steak slice between two pieces of plastic wrap or wax paper and pound evenly until it is very thin.
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6
Distribute a few onion slices over center of meat, add a finger of bread, one of pickle and a half slice of bacon.
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7
Sprinkle a very little salt (the bacon will add salt) and some pepper over all.
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8
Wrap the steak slice around the stuffing and tie or fasten with toothpicks.
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9
Repeat with remaining steak slices.
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10
Bring the chicken or beef stock to a slow simmer and add the dried mushrooms.
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11
(If using Italian mushrooms, soak them first in warm water for 20 minutes, then rinse to rid them of sand.)
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12
Remove from heat and let mushrooms steep in hot stock for at least 20 minutes.
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13
Roll beef rolls in the flour.
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14
Heat one tablespoon of oil and one of butter in a skillet over medium-high heat until butter foam subsides.
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15
Add remaining sliced onion and cook, stirring and tossing slices until onion is thoroughly browned; remove to an ovenproof dish.
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16
Add remaining butter and oil to the pan and brown the beef rolls evenly on all sides.
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17
When rolls are thoroughly browned and crisp on all sides, add to the dish with the onions.
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18
Distribute onions over and around beef rolls.
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19
Add stock and mushrooms, and bring to a gentle simmer on top of the stove.
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20
Place in oven and bake about two hours, or until the beef rolls are fork tender and the braising liquid has reduced to a syrupy gravy.