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1
Preheat oven to 375.
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2
In a heavy bottomed saute pan on over medium heat render bacon until crispy.
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3
Add onions, celery and mushrooms and saute until golden brown.
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4
Deglaze with dark beer and reduce until dry.
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5
Put ingredients aside to cool.
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6
In the meantime ,place brioche slices on a baking sheet and using a pastry brush, brush lightly with soft butter.
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7
When cooked ingredients have cooled, mix thoroughly with ground beef.
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8
With the ground beef mixture, form 8 square patties approximately two ounces each.
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9
Heat a large saute pan to medium high.
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10
When pan is hot, add vegetable oil and place patties in one at a time being sure not to overcrowd.
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11
Cook each patty until well browned on each side (about two minutes) then flip each one and repeat the cooking process on the other side.
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12
When patties are cooked, place on a baking sheet and top each one with a slice of tomato and one slice of cheese.
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13
Place the tray of brioche and the tray of burgers in the preheated oven until the cheese is melted and the bread is lightly golden brown.
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14
Assemble Iron Chef burgers by placing one patty on top of one slice of brioche and then topping with a pickle and another brioche slice.