Caramelized Onion Pasta Gratin

Name: Caramelized Onion Pasta Gratin
Ingredients: 3 pounds yellow onions (7-8 medium), peeled and cut lengthwise into 1/4-inch slices; 1/4 cup olive oil, divided; 3/4 pound rigatoni pasta; 3 tablespoons butter; 1/4 cup all-purpose flour; 1 cup whole milk; 1 cup no salt-added beef broth; 2 teaspoons salt; 1/2 teaspoon ground white or black pepper; 1 1/2 cups (6 ounces) grated Wisconsin Emmentaler Cheese, divided; 2 slices white bread, torn into pieces; 2 tablespoons fresh thyme leaves

Caramelized Onion Pasta Gratin was pinched from <a href="http://www.30days30waysmacandcheese.com/?p=991" target="_blank">www.30days30waysmacandcheese.com.</a>

INGREDIENTS

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3 pounds yellow onions (7-8 medium), peeled and cut lengthwise into 1/4-inch slices

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1/4 cup olive oil, divided

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3/4 pound rigatoni pasta

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3 tablespoons butter

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1/4 cup all-purpose flour

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1 cup whole milk

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1 cup no salt-added beef broth

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2 teaspoons salt

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1/2 teaspoon ground white or black pepper

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1 1/2 cups (6 ounces) grated Wisconsin Emmentaler Cheese, divided

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2 slices white bread, torn into pieces

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2 tablespoons fresh thyme leaves

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