"Octoberfest Potatoes, Au gratin potatoes amped up with bratwurst, beer and whole grain mustard...."
INGREDIENTS
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3 lbs potatoes (sliced thin (I left skins on)
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1 lb bratwurst, removed from casing
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3 Tbsp butter, divided
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1/3 cup onion, diced
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2 heaping Tbsp flour
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2 cups milk
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1.5 cup heavy beer
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2 Tbsp whole grain mustard
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1 Tbsp dijon mustard
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10 oz cheddar cheese, freshly shredded (the pre-shredded bagged stuff isn't as lovely)
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salt and pepper to taste