"Slow cooker french onion soup - loads of flavor, caramelized onions, and CHEESE!..."
INGREDIENTS
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4 yellow onions, skins removed and thinly sliced into rings
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4 tablespoons butter
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2 tablespoons minced garlic
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8 cups beef broth
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1 bay leaf
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6 slices crusty french bread
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8-12 slices of gruyere or swiss cheese