INGREDIENTS
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1 tbsp. extra-virgin olive oil
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1/2 onion, roughly chopped
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1/2 tsp. chili powder
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kosher salt
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Freshly ground black pepper
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8 hot dogs
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2 tbsp. butter
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2 tbsp. all-purpose flour
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1 c. milk
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1 1/2 c. shredded Cheddar
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1/2 c. Shredded Monterey Jack
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8 hard taco shells, slightly warmed
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1 c. guacamole
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Sour cream, for serving
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1/2 c. pickled jalapeños