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1
For caramelized red onions:.
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2
Melt butter with olive oil in large nonstick skillet over medium heat.
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3
Add onions and cook until deep golden brown, stirring frequently, about 30 minutes.
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4
Stir in vinegar, 1/2 teaspoon salt, and 1/4 teaspoon pepper.
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5
Remove from heat.
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6
(Can be prepared 1 day ahead.
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7
Cover and refrigerate.
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8
Rewarm over medium heat before serving.
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9
).
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10
Stir in chives.
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11
For tri-tip:.
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12
Prepare barbecue (medium heat).
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13
Mix garlic, 1 teaspoon salt, and 1/2 teaspoon pepper in small bowl.
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14
Brush both sides of tri-tips with oil and sprinkle with garlic-powder mixture, pressing to adhere.
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15
Grill tri-tips 5 minutes per side.
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16
Reduce heat to medium-low, or if using charcoal grill, move meat to cooler side of grill.
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17
Cover and grill until thermometer inserted into thickest part of meat registers 125F to 130F for medium-rare, brushing with barbecue sauce and turning every 10 minutes, about 30 minutes longer.
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18
Transfer tri-tips to work surface; let stand 10 minutes.
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19
Cut meat crosswise into very thin slices; arrange on platter.
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20
Surround with caramelized onions and serve.
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21
For sauce:.
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22
Heat olive oil in heavy medium saucepan over medium heat.
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23
Add garlic, cumin, and chipotle chile powder; stir 1 minute.
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24
Add wine and simmer 2 minutes.
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25
Stir in ketchup, vinegar, soy sauce, and liquid smoke; simmer 2 minutes longer.
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26
(Can be prepared 2 days ahead.
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27
Cover and refrigerate.
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28
).