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Tennessee Onions

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Tennessee Onions are a Southern-inspired baked side dish made with sweet onions, savory seasoning, and a generous layer of melted cheese. Slow-baked until tender and bubbling, this comforting recipe is perfect for family dinners and holiday spreads.

  • Author: Sophia
  • Prep Time: 20 minutes
  • Cook Time: 90 minutes
  • Total Time: 1 hour 50 minutes
  • Yield: 8 servings
  • Category: Side Dish
  • Method: Baked
  • Cuisine: Southern American
  • Diet: Vegetarian

Ingredients

  • 2 1/2 pounds sweet onions (such as Vidalia), peeled and sliced into 1/4-inch thick rings
  • 1 teaspoon dried parsley
  • 1 teaspoon dry mustard powder
  • 1 teaspoon garlic powder
  • 3/4 teaspoon seasoned salt
  • 1/2 teaspoon dried oregano
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon cayenne pepper (optional)
  • 1 cup shredded mozzarella cheese
  • 1 cup shredded sharp cheddar cheese
  • 1/2 cup finely grated Parmesan cheese
  • 4 tablespoons unsalted butter, cut into small cubes
  • 1/2 cup vegetable broth

Instructions

  1. Preheat oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish.
  2. Arrange onion rings evenly in the dish, layering them loosely.
  3. In a small bowl, mix parsley, mustard powder, garlic powder, seasoned salt, oregano, salt, black pepper, and cayenne (if using). Sprinkle evenly over onions.
  4. Dot the onions with butter cubes and pour vegetable broth around the edges of the dish.
  5. Cover tightly with foil and bake for 75 to 90 minutes until onions are very tender.
  6. In a bowl, combine mozzarella, cheddar, and Parmesan cheeses.
  7. Remove foil, sprinkle cheese mixture evenly over onions, and bake uncovered for another 5 to 10 minutes until cheese is melted and bubbling.
  8. Let rest a few minutes before serving.

Notes

  • Use freshly shredded cheese for better melting and flavor.
  • You can prep the dish ahead and refrigerate before baking.
  • For added spice, increase cayenne or sprinkle with red pepper flakes.
  • Try adding fresh herbs like thyme or rosemary for extra flavor.
  • This dish is best fresh but can be reheated in the oven or microwave.

Nutrition

Find it online: https://savorymomskitchen.com/tennessee-onions/