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1
Pat-dry the steak, season with salt and pepper, and place in a shallow glass pan.
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2
Pour 2 cups rosemary oil over steak, cover, and refrigerate for several hours.
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3
Turn the steak occasionally to coat both sides.
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4
Allow steak to come back to room temperature before grilling.
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5
Reserve 1/4 cup oil.
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6
Place a ridged grill pan over moderately high heat until very hot.
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7
Season the steak again and grill steak about 5 minutes per side for medium rare.
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8
Remove steak to a cutting board and let stand 10 minutes before cutting in slices.
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9
Brush the flesh of the peaches with remaining rosemary oil.
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10
Place cut side face down on the hot grill pan for 3 minutes.
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11
Turn over and grill the other side just for 1 minute to soften.
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12
Remove and slice peaches into wedges.
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13
Toss the greens and herbs together and divide among plates.
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14
Fan the steak slices and peach wedges on top.
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15
Drizzle the dressing over steak and peach salad, garnish with remaining 1/4 pound crumbled blue cheese.
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16
Season with freshly cracked black pepper and serve.
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17
To prepare the rosemary infused olive oil: Warm oil and rosemary over low heat in a small saucepan.
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18
Allow to steep for 8 minutes.
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19
Remove from heat and cool to room temperature.
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20
To prepare the creamy blue cheese dressing: Whisk together 1/2 pound blue cheese with sour cream, lemon, vinegar and cayenne until smooth.
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21
Fold in chives, cover, and chill until ready to serve.