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1
Preheat oven to 425F.
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2
Place beets, ginger and garlic in small glass baking dish.
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3
Cover with foil and bake until beets are tender, about 1 hour.
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4
Cool.
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5
Peel beets, ginger and garlic; place in blender.
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6
Heat 1 tablespoon oil in heavy large skillet over medium heat.
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7
Add shallot and thyme; saute 4 minutes.
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8
Add fish stock and wine; simmer until reduced to 1 1/4 cups, about 10 minutes.
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9
Add fish stock mixture and vinegar to beet mixture in blender.
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10
Blend until smooth, thinning with water to sauce consistency if too thick.
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11
Mix horseradish and cream in small bowl.
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12
Season with salt and pepper.
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13
(Beet sauce and horseradish mixture can be prepared 1 day ahead.
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14
Cover separately; chill.)
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15
Preheat oven to 425F.
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16
Sprinkle salmon with salt and pepper.
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17
Heat remaining 1 tablespoon oil in heavy large skillet over medium-high heat.
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18
Add 3 salmon fillets to skillet; cook just until golden, about 2 minutes per side.
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19
Arrange salmon, skin side down, on large baking sheet.
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20
Repeat with remaining salmon.
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21
Spread horseradish mixture atop salmon.
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22
Bake until salmon is cooked through, about 12 minutes.
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23
Bring beet sauce to simmer in pan, stirring.
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24
Remove from heat.
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25
Mix in sour cream.
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26
Season with salt and pepper.
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27
Place salmon on plates.
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28
Spoon sauce around salmon.