It starts with a tickle in your throat. By night, it's a cough that won't let you sleep. You know the feeling. We all do.

So you head to the store. The cough aisle is a wall of bottles. Most run ten or twelve bucks. And the label warns you — may cause drowsiness. You take a dose, you feel foggy, and the cough still wins the night.

But there's an older fix. It's sitting in your kitchen right now. Half an onion. A spoon of honey. Together they cost about a dollar. And a big review of the research says they may soothe a cough as well as those bottles do...

People have leaned on this remedy for a very long time. Onions go back thousands of years as a home cure. The workers who built Egypt's pyramids ate them by the basket. And in old Europe, folks would cut an onion and set it by a sick person's bed.

Honey has an even longer tale. It may be the oldest medicine we know of. Jars of it turned up in Egyptian tombs — still fine to eat after 3,000 years. That staying power is a clue to its strength. Healers stirred it into warm drinks to calm a raw, sore throat...

Here's the whole thing. Take one onion and slice it thin. Set the slices in a clean jar. Pour raw honey over them until they're covered. Snap the lid on and let the jar rest on the counter.

Give it eight to twelve hours. The honey draws the juice out of the onion. You end up with a thin, sweet syrup. Strain it into a clean jar. Take one spoonful when you need it, up to a few times a day.

Want more punch? Squeeze in some fresh lemon. The juice adds a hit of vitamin C and a bright note that cuts the onion's bite. That's the whole recipe — three foods, one jar, about a buck.

An onion is packed with a plant compound called quercetin. Let me explain what it does. The compound helps calm the body's histamine — the same stuff behind a runny nose and watery eyes. So a plain onion works a bit like a mild, natural antihistamine. Folk healers didn't know the word quercetin. But they knew an onion made breathing easier.

Red and yellow onions hold the most of it. The onion brings more than that, too. It's full of sulfur compounds — the same ones that sting your eyes when you chop it. Those have long been studied for the way they fight germs and calm swelling...

Worth knowing: Red onions are one of the richest food sources of quercetin, with roughly 39 mg packed into every 100 grams. A slice or two in your jar goes a long way.

Honey is the real workhorse here. It coats a raw, scratchy throat and calms the urge to cough. And it holds compounds that slow the growth of germs. That's why healers have spread it on cuts for centuries.

The proof is better than you'd guess. A team of researchers pulled together the best trials on honey and cough in kids. Their review, published through the Cochrane group, found honey likely eases a cough better than no treatment at all. It even held its own against a common cough-syrup drug — and it helped kids sleep more soundly. The gain was modest, but it was real. And it came with no morning fog.

The Mayo Clinic: For a nighttime cough, a spoonful of honey can work as well as store-bought syrup in adults and children over age one.

One firm rule stands out. Never give honey to a baby under one year old. It can carry spores that a young gut can't handle yet. For everyone past that first birthday, honey is about as safe as food gets.

You can take the syrup straight off the spoon. Or stir it into a mug of warm water for a soothing sip. Keep it warm, not boiling. Too much heat can dull the honey's best parts.

The onion doesn't work alone. It sits in a large, helpful clan. Garlic, leeks, and shallots carry those same sulfur compounds. You likely have most of them in your kitchen already. Add the lemon, and you've stacked three whole foods in one small jar. That's the whole idea here — real food, close to the soil, doing quiet work.

That kind is heated and filtered, which strips out some of its best stuff. Raw honey — the cloudy, local kind — holds more. Look for a jar that says "raw" right on the label.

Skip the mild, sweet white ones for this. A sharp onion carries the most quercetin. The stronger the smell and the sting, the more of that compound is inside. Your eyes may water, but your throat will thank you.

The good compounds fade after a few days. Keep the strained syrup in the fridge and use it up within a week. A small, fresh jar beats a big, old one every time.

So the next time a cough creeps in, you don't have to rush to the store. Look in your kitchen first. One onion, a jar of honey, maybe a lemon. The fix was there the whole time.

Our grandparents leaned on this for a reason. Now the studies are catching up to what they already knew. It's cheap, it's gentle, and it tastes far better than it sounds.

Try it this week. Make a jar before the next cold finds you. See how your throat feels by morning.