"This is the chicken dinner I keep coming back to...."
INGREDIENTS
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2 pounds yellow onions (about 2 large)
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2 tablespoons unsalted butter
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1/8 teaspoon baking soda
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1 1/2 teaspoons kosher salt, divided
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4 boneless, skinless chicken breast cutlets (or 2 boneless, skinless chicken breasts)
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1/2 teaspoon freshly ground black pepper
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2 tablespoons olive oil
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2 ounces Gruyère cheese, shredded (1/2 packed cup)
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1 cup low-sodium beef or chicken broth
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1 tablespoon Dijon mustard
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2 tablespoons fresh parsley leaves