Nickel Allergy Friendly Machaca (Mexican Shredded Beef)

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  2 ½ lb beef brisket or chuck roast, cut into 3-inch chunks
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  2 tsp kosher salt
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  1 tsp black pepper
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  2 tbsp vegetable oil, divided
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  1 medium white onion, diced
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  1 green bell pepper, diced
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  3 cloves garlic, minced
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  2 roma tomatoes, diced
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  2 dried guajillo chiles, stemmed, seeded, and torn into pieces
  Suggested products

  Ingredients can vary. These products likely fit a Nickel Allergy diet.

  Badia Chili Guajillo Bag - 3 OzThat's Tasty Chiles, Guajillo, Medium HeatBadia Guajillo Chili PodsEl Guapo Whole Guajillo Chili Pods (Chile Guajillo Entero), 2 oz BagKroger Mercado Dried Guajillo Chile Peppers

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  1 dried ancho chile, stemmed, seeded, and torn into pieces
  Suggested products
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  1 tsp ground cumin
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  1 tsp dried oregano
  Ingredient note

  Herbs and spices can carry nickel, so a low nickel diet limits them, but the small amount of oregano used to season this recipe is likely fine. If you prefer to always avoid oregano, please tap it and change its rating to Red.

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  2 cups low-sodium beef broth
  Suggested products
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  1 tbsp apple cider vinegar
  Suggested products
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  salt and pepper, to taste

For serving

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  warm flour or corn tortillas, for serving (optional)
  Suggested products

  Flour:

  Suggested products

  Corn tortillas:
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  fresh cilantro, roughly chopped, for serving (optional)
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  lime wedges, for serving (optional)