The Ultimate Tennessee Onion Casserole Recipe

Royal Nutritional Ledger *
For those counting their gold coins and their calories.
The Royal Disclaimer: These figures are calculated by our finest AI court scholars based on standard ingredient values. They are highly educated estimates meant for guidance, not gospel. If you require absolute scientific precision for medical or dietary salvation, please consult a certified physician rather than our kitchen AI!
Did You Know?
Historical Tidbit
Vidalia onions are famously grown exclusively in a 20-county region in Georgia, where the low-sulfur soil creates their signature sweetness.
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The Golden Rule
"Never skip the foil tenting in the first half of the bake, or your cheese will incinerate before your onions even soften."
Ingredients
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Chef's Notes
Sweet Vidalia onions are the undisputed royalty of this dish. Do not substitute them with sharp boiling onions unless you enjoy crying tears of culinary regret.
Pro Tip
Slice your butter paper-thin and scatter it meticulously. If you clump it all in one corner, you will end up with a swimming pool of grease instead of a majestic bake.
Kitchen Catastrophe Warning
Dropping the entire casserole dish on the kitchen floor while removing the heavy foil will turn your royal feast into a depressing, shattered puddle of heartbreak and cheese shards.
The Jester's Corner
Royal Court Comedy
Our Royal Jester claims that this casserole is the only way to make an onion cry tears of joy instead of making the chef cry tears of sorrow!
The Culinary Science
Slowly baking onions breaks down their complex carbohydrates into simple, deeply sweet sugars without actually browning them aggressively under the foil.
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General Food Safety & Storage
Storage Science
Cool rapidly. Store in an airtight container in the refrigerator (below 4ยฐC / 40ยฐF). Consume within 3-4 days.
Reheating Science
Reheat to an internal temperature of 165ยฐF (74ยฐC). Use the stove or oven for best texture, stirring or turning occasionally to ensure even heating.






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