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How to Make Earl Grey Syrup for London Fogs & Lattes

By Coffee & Tea Culture Team

How to Make Earl Grey Syrup for London Fogs & Lattes

To learn how to make Earl Grey syrup, you steep Earl Grey tea — black tea scented with bergamot — in a hot 1:1 simple syrup for just a few minutes, then strain it into a clean bottle. The result is a fragrant, citrusy, bergamot-scented syrup you stir into a London fog, an Earl Grey latte, iced tea, cold brew, or a glass of sparkling water. It takes about ten minutes of hands-on time, and the whole batch is nothing more than sugar, water, and a couple of tea bags.

This guide owns the syrup itself — the ratios, the ingredients, and the exact method. For the plain sweetener underneath it, see our guide to how to make simple syrup; for how this fits into the wider family of cafe syrups, see coffee syrups explained; and for the finished drink it is famous for, head to how to make a London fog tea latte. Here we stay focused on the bottle.

What Earl Grey syrup is (and how a tea-infused syrup works)

Earl Grey syrup is a flavored simple syrup: a plain sugar-and-water syrup that has been steeped with Earl Grey tea so it carries that tea's signature aroma. Earl Grey is a black tea scented with bergamot, a fragrant citrus, which is why the finished syrup tastes bright, floral, and lightly citrusy rather than just sweet.

The mechanism is simple. A simple syrup is sugar dissolved in water, and it acts like a flavor sponge — anything you infuse into it while it is warm lends its aroma and color to the liquid. Steep tea leaves or tea bags in that warm syrup and the syrup pulls out the tea's flavor compounds and the bergamot oils, so a splash of it delivers all the character of a strong cup of Earl Grey in a form that dissolves instantly into a hot or cold drink. Because it is already sweet, it does double duty: it sweetens and flavors in one pour.

This is also the classic sweetener for a London fog — that cafe drink of strong Earl Grey, vanilla, and steamed milk. Using an Earl Grey syrup (sometimes called a London fog syrup) lets you build the drink in seconds instead of brewing and sweetening separately. We keep the full drink build in our London fog tea latte guide; here the job is just to get a good bottle of syrup made.

The one rule: do not over-steep the tea

Here is the single most important technique point, and the one that separates a fragrant syrup from a bitter one: keep the steep short. Black tea is full of tannins, the compounds that give tea its briskness and, in excess, its harsh, astringent, drying bitterness. Hot syrup is efficient at extracting them, so the longer the tea sits in the hot liquid, the more tannin it pulls and the more bitter and puckery the syrup turns.

The fix is to treat the steep like brewing a good cup rather than boiling a pot dry. Add the tea off the heat, steep for only 5 to 8 minutes, taste as you go, and strain the moment the flavor is where you want it. A short steep gives you all the bergamot-citrus aroma with none of the bitter edge. If you have ever left a tea bag in a mug too long and made it undrinkable, this is the same trap — just avoid it and the syrup practically makes itself.

Ingredients and amounts

This Earl Grey syrup recipe makes roughly one cup (about 240 ml) of finished syrup. Everything scales up in the same proportions — it is a 1:1 syrup, so keep equal parts sugar and water and add tea to match.

  • Granulated sugar: 1 cup (about 200 g). White sugar keeps the bergamot flavor clean and clear; a raw or light brown sugar works too and adds a faint caramel note.
  • Water: 1 cup (about 240 ml). Equal parts sugar and water is the standard 1:1 ratio and gives a pourable, everyday-strength syrup.
  • Earl Grey tea: 2 to 3 tea bags, or about 1 to 2 tablespoons of loose-leaf Earl Grey, per cup of syrup. Use more for a bolder, more bergamot-forward syrup; use less for a gentler one.
  • Optional strip of citrus peel: a single strip of lemon or orange peel (zest only, no white pith) steeped alongside the tea lifts and echoes the bergamot. Remove it with the tea.
  • Optional drop of vanilla: a few drops of vanilla extract stirred in as the syrup cools rounds the whole thing out and nudges it toward that classic London fog flavor.

How to make Earl Grey syrup, step by step

This is the core method, start to finish. Hands-on time is about ten minutes, plus cooling.

  1. Combine the sugar and water. Add 1 cup sugar and 1 cup water to a small saucepan and stir once to wet the sugar.
  2. Heat gently until the sugar dissolves. Warm over medium heat, stirring now and then, just until the liquid turns clear and the sugar is fully dissolved. You do not need a hard boil — a bare simmer at the edges is plenty. Once it is clear, take it off the heat.
  3. Add the tea off the heat. Drop in your 2 to 3 Earl Grey tea bags (or the loose tea in an infuser), plus the optional strip of citrus peel. Adding the tea after the heat is off is what keeps the steep controlled and gentle.
  4. Steep just 5 to 8 minutes. Let it sit and infuse. Start tasting at around 5 minutes with a clean spoon. The moment the bergamot flavor is strong and bright — and before any bitterness creeps in — you are done. Remember: a longer steep means a more bitter syrup, so err on the short side and taste as you go.
  5. Strain out the tea. Lift out the tea bags (do not squeeze them, as squeezing wrings out extra tannin), or pour the syrup through a fine strainer to catch loose leaves and the peel.
  6. Cool, then flavor. Stir in the optional few drops of vanilla now, while the syrup is warm but off the heat. Let the syrup cool to room temperature.
  7. Bottle it. Pour the cooled syrup into a clean, sealable bottle or jar and refrigerate. That is your Earl Grey simple syrup, ready to pour.

At a glance: ingredients, amounts, and their role

Here is the whole recipe in one view, and what each part is doing.

IngredientAmount (per cup of syrup)Role
Granulated sugar1 cup (about 200 g)The sweet base; dissolves into a pourable, shelf-friendly syrup
Water1 cup (about 240 ml)Equal part for the 1:1 ratio; carries the sugar and the tea flavor
Earl Grey tea2 to 3 bags, or 1 to 2 tbsp looseThe star flavor; lends black-tea depth and bergamot-citrus aroma
Lemon or orange peel (optional)1 strip, zest onlyBrightens and echoes the bergamot; steep and remove with the tea
Vanilla extract (optional)A few dropsRounds out the flavor and leans it toward classic London fog

How to use Earl Grey syrup

A little goes a long way — start with about 1 to 2 tablespoons per drink and adjust to taste. A few favorite ways to pour it:

  • London fog: its signature home. Stir the syrup into a strong cup of Earl Grey, top with steamed frothy milk, and you have a London fog in under a minute. The full method lives in our London fog tea latte guide.
  • Earl Grey latte or coffee: stir a spoonful into a milky latte at home, or add it to a plain coffee for a floral, citrusy twist on a vanilla-style latte.
  • Iced tea: sweeten a pitcher of iced tea and deepen its flavor at the same time — the bergamot layers beautifully over black or even green iced tea.
  • Cold brew: a splash cuts through smooth, low-acid cold brew and adds an aromatic lift without any grittiness, since the sugar is already dissolved.
  • Sparkling water or soda: pour a little over ice, top with sparkling water, and add a lemon slice for a quick, fragrant Earl Grey soda.

How to store Earl Grey syrup

Keep the finished syrup in a clean, sealed bottle or jar in the refrigerator. A 1:1 tea syrup like this generally keeps for about two weeks refrigerated. Because it carries brewed tea and, if you added it, citrus peel, treat it as a fresh, perishable flavoring rather than a long-life pantry syrup. Always pour with a clean spoon or straight from the bottle to avoid introducing anything into it, and give it a look and a sniff before each use: if it smells off, looks cloudy, or shows any specks or film, discard it and make a fresh batch. Labeling the bottle with the date you made it makes that easy to track.

A light note on caffeine and food safety

Two quick, practical points. First, Earl Grey is a real black tea, so the syrup carries a little caffeine — the amount depends on how much tea you used and how much syrup you pour, but a spoonful in a drink adds only a modest amount, less than a full cup of tea. If you are sensitive to caffeine or watching your evening intake, keep that in mind, or steep a decaffeinated Earl Grey instead. Second, this is a homemade, refrigerated syrup: keep it cold in a clean bottle, use it within a couple of weeks, and when in doubt, throw it out. None of this is a health warning — just ordinary kitchen sense. Responses and preferences vary, and this is not medical advice.

That is all there is to it: warm a 1:1 simple syrup, steep the Earl Grey briefly, strain, cool, and bottle. Keep the steep short and taste as you go, and you will end up with a fragrant, bergamot-scented Earl Grey syrup that turns an ordinary cup into a London fog, an Earl Grey latte, or a bright glass of iced tea whenever you want one.

Frequently asked questions

What is Earl Grey syrup made of?
Earl Grey syrup is a flavored simple syrup made from equal parts sugar and water (a 1:1 ratio) that has been briefly steeped with Earl Grey tea. That black tea is scented with bergamot, a fragrant citrus, so the finished syrup tastes bright, floral, and citrusy as well as sweet. A strip of lemon or orange peel and a drop of vanilla are optional extras.
Can you use Earl Grey tea bags to make syrup?
Yes. Tea bags are the easiest option. Use about 2 to 3 Earl Grey tea bags per cup of syrup, or roughly 1 to 2 tablespoons of loose-leaf Earl Grey. Add them to the hot syrup off the heat, steep for 5 to 8 minutes, then lift the bags out without squeezing them, since squeezing wrings out extra tannin and bitterness.
Why does my Earl Grey syrup taste bitter?
Almost always because the tea steeped too long. Black tea is high in tannins, and hot syrup extracts them quickly, so an over-long steep turns the syrup harsh and astringent. Keep the steep to 5 to 8 minutes, taste as you go, and strain the moment the bergamot flavor is where you want it. Not squeezing the tea bags helps too.
How long does Earl Grey syrup last?
Stored in a clean, sealed bottle in the refrigerator, a 1:1 Earl Grey syrup generally keeps for about two weeks. Because it contains brewed tea and any citrus peel, treat it as a fresh, perishable flavoring rather than a long-life pantry item. Pour with a clean spoon, and if it smells off, looks cloudy, or shows any specks, discard it and make a fresh batch.
Does Earl Grey syrup have caffeine?
A little. Earl Grey is a real black tea, so the syrup carries some caffeine, though a single spoonful in a drink adds only a modest amount, less than a full cup of tea. The exact amount depends on how much tea you steeped and how much syrup you pour. For a caffeine-free version, simply steep a decaffeinated Earl Grey instead.

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