Let’s Get Cooking!
Step 1: Prep & Preheat
- Preheat your oven to 350°F (175°C).
- Lightly grease a 9×13-inch baking dish.
Step 2: Layer the Onions
- Arrange the onion slices in the baking dish, slightly overlapping.
Step 3: Creamy Dreamy Sauce
- In a bowl, whisk together the melted butter, heavy cream, garlic powder, salt, and pepper.
- Pour this creamy mixture evenly over the onions.
Step 4: Cheese Please!
- Sprinkle the shredded cheese over the onions.
- Top with the Parmesan cheese.
Step 5: Bake to Perfection
- Cover the dish with foil and bake for 30 minutes.
- Remove the foil and bake for another 15-20 minutes, or until the cheese is bubbly and golden brown.
Step 6: Serve & Enjoy!
- Let cool for about 5 minutes before serving.
- Garnish with parsley (optional).
- Serve warm and enjoy!
Tips & Tricks
- Onion Power: Sweet onions like Vidalia are best for their mild sweetness.
- Cheese Choice: Cheddar for sharpness, mozzarella for creaminess – or mix and match!
- Foil Secret: Covering with foil initially helps the onions soften.
Spice it Up!
- Spicy Kick: Add red pepper flakes or use pepper jack cheese.
- Bacon Bliss: Crumble cooked bacon on top before baking.
- Herby Goodness: Add dried thyme or rosemary to the sauce.
- Mushroom Magic: Add sliced mushrooms with the onions.
Frequently Asked Questions
Can I Make These Ahead?
Yes! Assemble the dish up to 24 hours in advance and refrigerate. Bring to room temperature before baking.
How to Store Leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in a 350°F oven.
Can I Use Different Onions?
Yes, but yellow or white onions will have a stronger flavor.
What to Serve With?
These are amazing with grilled steak, roasted chicken, barbecue ribs, mashed potatoes, or green beans.
Enjoy these unbelievably delicious Tennessee Onions! They’re sure to be a hit at your next gathering.
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