"It's not summer or tailgate season without beer brats. If you like caramelized onions, you'll love this 4-ingredient grilled brat recipe...."
INGREDIENTS
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10 bratwurst ((raw, see note 1))
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1 large onion (thinly sliced)
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4 (12 ounce) cans beer ((see note 2))
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10 brat buns (split, for serving)
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Ketchup (and mustard, for serving)
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sauerkraut (for serving (see note 3))