"French onion soup in grilled cheese form. This is what heaven tastes like!..."
INGREDIENTS
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3 Tablespoons Butter, Plus More For Buttering Bread
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1 Tablespoon Olive Oil
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2 whole Medium Yellow Onions, Sliced 1/4 Of An Inch Thick
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1 teaspoon Kosher Salt
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½ teaspoons Black Pepper
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1 teaspoon Sugar
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1 teaspoon Fresh Thyme Leaves
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3 Tablespoons Beer (beef Stock Or White Wine Can Be Substituted)
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4 slices Sourdough Bread
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½ cups Grated Apple Smoked Gruyere Cheese (or More If Desired)