1 teaspoon freshly ground black pepper, or to taste
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1 teaspoon ground cumin, or to taste
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0.5 teaspoon celery salt, or to taste
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1 pinch cayenne pepper, or to taste
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8 all-beef hot dogs
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8 hot dog buns
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0.25 cup prepared yellow mustard, or to taste
Instructions
Gather all ingredients.
Combine ground beef, water, 1/2 cup diced onion, ketchup, butter, garlic, chili powder, salt, black pepper, cumin, celery salt, and cayenne pepper together in a pot. Mix with a potato masher or spatula over medium-high heat until mixture has a finely ground consistency and begins to bubble, about 10 minutes.
Bring beef mixture to a simmer, reduce heat to medium-low, and cook, stirring occasionally, until sauce thickens and reduces, about 1 hour. Season with salt and pepper to taste.
Bring a large pot of water to a boil. Cook hot dogs in boiling water until heated through, 5 to 7 minutes.
Preheat the oven to 350 degrees F (175 degrees C). Arrange hot dog buns on a baking sheet. Cook buns in the preheated oven until soft and warm, 2 to 3 minutes.
Place 1 bun on a plate. Place a hot dog in the bun and top with meat sauce. Drizzle yellow mustard and a portion of remaining diced onion over the meat sauce. Repeat with remaining hot dogs.