Here is how to make peppermint syrup: warm equal parts sugar and water into a clear simple syrup, then either steep bruised fresh mint leaves in it off the heat for 20 to 30 minutes and strain, or stir in a few drops of food-grade peppermint extract one drop at a time, cool, and bottle. That cool, minty syrup is the flavor behind a peppermint mocha or peppermint latte, and it stirs easily into iced coffee, cold brew, and cold foam.
Homemade beats the bottle for one reason: control. You choose how minty it gets, how sweet it is, and whether it leans fresh and herbal or bright and candy-cane festive. Below is what the syrup is, the two routes you can take, a full ingredient list, the step-by-step method for each version, how much to use per drink, and how to store it.
What peppermint syrup is and how it is used
Peppermint syrup is a plain simple syrup — equal parts sugar and water cooked just until the sugar dissolves — carrying a cool, minty flavor. That flavor is the only real difference between this and a vanilla syrup or a caramel syrup: the same sweet liquid base, a different aroma stirred through it. Because it is already a syrup, it dissolves instantly into hot or cold drinks with none of the grit you get from stirring sugar into iced coffee.
Most people meet peppermint syrup around the winter holidays, when it becomes the backbone of the seasonal peppermint mocha — espresso, chocolate, steamed milk, and a shot of mint. It is just as at home in a peppermint latte, stirred into hot chocolate, or floated through cold brew and iced coffee. A little goes into cold foam beautifully too, so the mint cascades down through an iced drink as you sip. Think of it as one small bottle that turns an ordinary cup into a candy-cane-season treat any time you like.
The two routes: fresh mint or peppermint extract
There are two honest ways to make this syrup, and they taste noticeably different. Pick the one that matches the flavor you want.
The fresh-mint infusion steeps real mint leaves in the warm syrup. It is milder, greener, and more herbal — a garden-fresh mint rather than a candy one. This is the friendlier route for iced tea, lemonade, and a softer peppermint latte, and it is the one to reach for in summer when fresh mint is everywhere. Note that most garden mint is spearmint, which reads sweeter and rounder; true peppermint leaves, if you can get them, give a cooler, sharper bite closer to the classic flavor.
The peppermint-extract version skips the leaves and stirs a few drops of food-grade peppermint extract straight into the finished syrup. It is stronger, cleaner, and unmistakably candy-cane — the taste people picture when they think peppermint mocha. It is also faster, keeps longer, and is consistent every time, since you are not depending on how fragrant this week's mint happens to be. The catch is potency: extract is concentrated, so you add it a drop at a time and taste as you go.
You can even combine them — a fresh-mint syrup finished with one drop of extract to lift it.
| Route | Flavor | Keeps (refrigerated) |
|---|---|---|
| Fresh-mint infusion | Milder, greener, herbal, garden-fresh | About 1 to 2 weeks |
| Peppermint extract | Stronger, cleaner, candy-cane and festive | Several weeks to about a month |
| Both together | Fresh base with a cool, sharp lift | About 1 to 2 weeks (limited by the mint) |
Ingredients
This peppermint syrup recipe makes roughly a cup of syrup, plenty for many drinks. You need the sweet base plus your chosen flavoring.
| Component | Amount | Note |
|---|---|---|
| Water | 1 cup (240 ml) | Filtered if your tap water tastes strongly of anything |
| Granulated sugar | 1 cup (about 200 g) | Equal parts sugar and water is the cafe-standard 1:1 simple syrup |
| Fresh mint (for the infusion) | 1 loosely packed cup of leaves | Peppermint for a sharper bite, or spearmint for a sweeter, rounder mint |
| Peppermint extract (for the extract version) | 1/4 to 1/2 tsp, added drop by drop | Food-grade extract only, never essential oil; it is potent, so go slowly |
| Red food coloring (optional) | 1 drop | Just for a festive pink tint; purely cosmetic |
Gear is minimal: a small saucepan, a spoon, a fine strainer or a piece of cheesecloth (for the fresh version), a funnel, and a clean glass bottle or jar with a tight lid. That is the whole kit. If you want the deeper background on how any simple syrup is built and why the 1:1 ratio is the cafe standard, it is the same base you would warm for any flavored coffee syrup — only the aroma you stir through it changes.
How to make peppermint syrup step by step
Both routes start the same way — you build a plain simple syrup first — then split at the flavoring stage. Here is how to make peppermint syrup either way.
Start with the simple syrup (both routes)
- Combine sugar and water. Add 1 cup sugar and 1 cup water to the saucepan and set it over medium heat.
- Warm until clear. Stir now and then until the sugar fully dissolves and the liquid turns clear, usually 3 to 5 minutes. Let it reach a gentle simmer, but do not boil it hard — you want to dissolve the sugar, not reduce it.
- Take it off the heat. Pull the pan off the burner before any mint or extract goes in. Flavoring boiling syrup is the fastest way to cook out the fresh, cool notes and draw out bitterness instead.
Route A: the fresh-mint infusion
- Bruise the leaves. Give the mint a gentle press with the back of a spoon or a light crush in your hands. Bruising releases the aromatic oils so the syrup pulls in more flavor.
- Steep off the heat. Stir the bruised leaves into the warm syrup, cover, and let them infuse for 20 to 30 minutes. Taste with a clean spoon around the 20-minute mark; steep a little longer if you want it stronger.
- Strain well. Pour the syrup through a fine strainer or cheesecloth to catch every leaf. Leaving mint in the bottle keeps extracting and can turn the syrup grassy or bitter.
- Cool and bottle. Let it come to room temperature, funnel it into a clean bottle or jar, seal, and refrigerate. Label it with the date.
Route B: the peppermint-extract version
- Add extract a drop at a time. With the syrup off the heat, stir in food-grade peppermint extract one drop at a time, tasting after each. It is potent, so a 1/4 teaspoon total is often plenty and 1/2 teaspoon makes a bold, candy-cane syrup.
- Stop when you like it. Remember the syrup tastes stronger straight off the spoon than it will once diluted into milk or coffee, so aim for a touch more minty than seems right on its own.
- Tint if you want (optional). Stir in a single drop of red food coloring for a festive pink hue. This is purely cosmetic.
- Cool and bottle. Funnel the cooled syrup into a clean sealed bottle and refrigerate. Label it with the date.
How much to use, and what to make with it
Dose roughly 1 to 2 tablespoons of peppermint syrup per drink and adjust to taste — start low, since you can always add more, and the extract version especially can run away from you. Because it is already liquid, it blends into cold drinks without a trace of grit.
- Peppermint mocha: stir the syrup into espresso with a little chocolate or cocoa, then add steamed milk. This is the classic winter build, and peppermint syrup for coffee shines brightest here.
- Peppermint latte: skip the chocolate and stir the syrup into espresso and steamed milk. For the full drink build and milk ratios, follow our guide to how to make a latte at home and simply swap in this syrup.
- Hot chocolate: a spoonful turns a plain mug into a mint hot chocolate — a favorite with kids and grown-ups alike over the holidays.
- Iced coffee and cold brew: stir a little mint syrup for coffee straight into a cold glass; it dissolves instantly and adds a cooling lift.
- Peppermint cold foam: add a splash to the milk or cream before you froth it, so the mint runs down through an iced drink. Our guide to how to make chai syrup shows how the same layering trick works with a warm-spiced profile if you want to alternate.
Peppermint also plays well with chocolate, vanilla, and coffee, so it is easy to layer into steamers, sodas, and hot cocoa beyond the coffee bar. A cup of peppermint is a comforting, refreshing thing to sip, though responses vary and this is not medical advice — treat it as a flavor you enjoy rather than a remedy.
How to store peppermint syrup
Keep the bottle sealed in the refrigerator. The fresh-mint version, because of the plant matter that once passed through it, keeps about 1 to 2 weeks. The extract version, made only from sugar, water, and concentrated flavoring, holds up longer — often several weeks to about a month. In both cases, pour directly or use a clean spoon each time, never one that has touched another drink, so you do not introduce anything that speeds spoilage.
Give it a look and a sniff before each use. Cloudiness, floating specks, any fuzz, or a sour or fermented smell all mean the batch is past it — when in doubt, throw it out and make a fresh cup's worth. If you want a longer-keeping syrup, a higher 2:1 sugar-to-water ratio lasts a little longer, and some people add a small splash of vodka (about a teaspoon per cup) as an optional preservative.
A quick safety note
Two food-safety points are worth repeating. First, if you use extract, use only food-grade peppermint extract — never peppermint essential oil, which is far too concentrated to drink — and add it one drop at a time so you never overshoot. Second, keep the finished syrup refrigerated in a clean, sealed bottle, and discard it if it looks cloudy, grows any fuzz, or smells off. Beyond that, peppermint syrup is just sugar, water, and a cool mint flavor. As with any botanical, if you are pregnant or breastfeeding or taking medication and have questions about consuming peppermint, ask your own healthcare provider — responses vary, and this is a flavor guide, not medical advice.
Once a bottle is cooling on your counter, a peppermint mocha, a mint hot chocolate, or an iced coffee with a cool twist is a single pour away. Make it once, keep it in the fridge, and it will carry you through the holiday season and beyond.