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1
Melt butter in heavy medium saucepan over medium-low heat.
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2
Add shallots; saute until beginning to brown, about 10 minutes.
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3
Add sugar.
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4
Saute until shallots are golden brown, about 10 minutes.
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5
Increase heat to medium-high.
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6
Add vinegar; boil 2 minutes.
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7
Add both stocks; boil until liquid is reduced to 1 1/2 cups, about 25 minutes.
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8
Strain.
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9
Soak dried fruit in hot water to cover for 15 minutes.
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10
Drain.
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11
Melt 1 tablespoon butter in heavy medium skillet over medium-high heat.
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12
Add mushrooms and saute until tender, about 4 minutes.
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13
Add tomatoes and saute until almost all liquid evaporates, about 4 minutes.
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14
Stir in fruit and saute 2 minutes.
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15
Season with salt and pepper.
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16
Steam spinach until just wilted, about 2 minutes.
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17
Cool.
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18
Using sharp knife, cut horizontal slit 3/4 of the way through each chicken breast.
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19
Open as for book.
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20
Sprinkle with salt and pepper.
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21
Place thin layer of spinach over half of each breast.
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22
Top spinach with 2 tablespoons fruit mixture.
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23
Close breasts over filling.
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24
Tie with kitchen string.
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25
(Sauce and chicken can be made 1 day ahead; chill.)
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26
Preheat oven to 425F.
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27
Melt 1 tablespoon butter in large skillet over medium-high heat.
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28
Sprinkle chicken with salt and pepper; brown in skillet, about 4 minutes per side.
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29
Transfer to baking sheet.
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30
Bake until chicken is cooked through, about 15 minutes.
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31
Bring sauce to simmer.
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32
Remove from heat.
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33
Gradually add 4 tablespoons butter, whisking just until melted.
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34
Remove string from chicken.
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35
Cut each breast crosswise into 5 slices.
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36
Serve with sauce.