"These copycat White Castle sliders are so insanely good and even better than the original! These mini burgers are full of big flavors......"
INGREDIENTS
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1 lb. ground beef
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1oz. onion soup mix
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¼ cup milk
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1 small onion, chopped
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½ tbsp peanut butter or peanut powder, optional
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6 slices Velveeta cheese
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6 sesame brioche buns or 12 mini slider buns