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1
Saute shallot in olive oil over medium-low heat until softened.
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2
Set aside to cool.
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3
To make patties combine ground sirloin, ground chuck, salt, pepper, Worcestershire sauce, mustard, sage, and sauteed shallot in a large bowl.
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4
Mix well until all ingredients are thoroughly combined.
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5
Divide mixture into 6 equal portions and form patties (6 ounces each).
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6
Grill patties (in grill pan) over medium-high heat for 4 minutes on each side for medium rare.
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7
While patties are cooking, prepare buns.
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8
Whisk eggs in a bowl with milk, salt, and pepper.
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9
Dip Portuguese muffin halves in mixture 1 at a time (place each on a plate after dipping).
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10
Heat 1 tablespoon butter in saute pan over medium heat.
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11
Place 3 muffin halves into pan and fry, flipping once until both sides are golden brown.
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12
Place cooked muffins onto plate and cover with foil.
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13
Repeat process using 1 tablespoon butter for every batch of 3 muffin halves until all have been cooked.
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14
When patties have been cooked, remove the patties from the grill pan and rest on a half-sheet pan.
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15
Top with cheese slices and tent with aluminum foil.
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16
Repeat process with the remaining patties.
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17
To assemble the burgers, place 1 patty (with cheese) on bottom half of the Portuguese muffin.
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18
Top with prosciutto, spread with 1 tablespoon of sauce, and add top of muffin.
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19
Serve.
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20
A viewer, who may not be a professional cook, provided this recipe.
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21
The Food Network Kitchens chefs have not tested this recipe and therefore, we cannot make representation as to the results.