Simple Syrup Recipe (Plus 5 Coffee Syrups for Lattes & Espresso Drinks)

Every great coffee drink starts with a great syrup. Whether you’re sweetening a latte, layering a shaken espresso, or mixing an espresso martini, simple syrup is the foundation — and making it at home takes about 5 minutes.

This guide covers the basic recipe, plus five coffee-specific syrups that every home barista should have on hand.

What Is Simple Syrup?

Simple syrup is sugar dissolved in water. That’s it.

The reason bartenders and baristas use it instead of granulated sugar: it disperses instantly in any liquid — hot, cold, or room temperature. Sugar crystals take time and stirring to dissolve, especially in cold drinks. Syrup integrates in seconds.

Two ratios:

For most home coffee uses, 1:1 is the standard. It’s lighter, easier to measure, and blends perfectly with milk-based drinks.

Basic Simple Syrup Recipe

Time: 5 minutes
Makes: ~1.5 cups (about 350 ml)

Ingredients

• 1 cup (200 g) granulated white sugar
• 1 cup (240 ml) water

Instructions

1. Combine sugar and water in a small saucepan over medium heat.
2. Stir continuously until the sugar fully dissolves — about 2–3 minutes. The liquid will turn from cloudy to clear.
3. Do not bring to a rolling boil. A gentle simmer is fine, but vigorous boiling can cause crystallization.
4. Remove from heat. Let cool to room temperature (about 20 minutes).
5. Transfer to a clean glass jar or bottle with a lid.
6. Refrigerate. Keeps for 2–4 weeks.

Pro tip: Use a clean glass jar — plastic can absorb flavors from previous syrups, especially after making lavender or hazelnut versions.

Pro tip on water: The water you make simple syrup with matters more than most home recipes admit. Hard tap water (over 200 mg/L TDS) adds a faint mineral background that sits underneath the sweetness and is especially noticeable in clean-flavor syrups like vanilla and lavender. Heavily chlorinated tap water adds a sharper off-note that lingers in the finish. Use filtered, bottled (Volvic, Crystal Geyser), or remineralized RO water — the same water you would use for your espresso — and the syrup tastes noticeably cleaner. Distilled-only works for syrup (unlike for espresso) because you are dissolving sugar, not extracting flavor compounds from coffee.

5 Coffee Syrups to Make at Home

1. Vanilla Syrup Recipe

The most popular coffee syrup. Used in vanilla lattes, iced coffees, and vanilla sweet cream cold brew.

Add to the base recipe (while still warm):

• 2 teaspoons pure vanilla extract (or scrape 1 vanilla bean into the syrup)

Stir in the vanilla after removing the pan from heat. The warmth blooms the vanilla without cooking off the aromatic compounds.

Best in: vanilla latte, iced latte, vanilla sweet cream cold brew, cold brew

Shelf life: 2–3 weeks refrigerated.

2. Lavender Syrup Recipe

Floral and lightly sweet. Perfect for lavender lattes, lavender matcha drinks, and lemonade.

Add to the base recipe:

• 2 tablespoons dried culinary lavender

Method (infused syrup):

1. Make the basic syrup.
2. Add dried lavender to the warm syrup.
3. Steep for 10–15 minutes (longer = stronger floral flavor).
4. Strain through a fine mesh strainer before bottling.

Pro tip: Use culinary-grade dried lavender, not ornamental. Over-steeping creates a soapy taste — taste at 10 minutes and decide.

Best in: lavender latte, lavender matcha latte, iced lemonade

Shelf life: 2–3 weeks refrigerated.

3. Brown Sugar Syrup Recipe

Rich, caramel-forward sweetness. The foundation for tiger milk tea, brown sugar boba, and brown sugar shaken espresso.

Modified recipe (not a 1:1 swap):

• 1 cup (200 g) dark brown sugar
• ½ cup (120 ml) water
• ½ teaspoon cinnamon (optional, for warmth)

Brown sugar has more molasses than white sugar, so you need slightly less water for a syrup of similar consistency. The result is deeper and more complex than plain simple syrup.

Best in: brown sugar shaken espresso, tiger milk tea, taro milk tea, iced latte

Shelf life: 1–2 weeks refrigerated (higher moisture content = shorter shelf life).

4. Caramel Syrup Recipe

Toasty, buttery sweetness — the signature flavor in caramel macchiatos and caramel lattes.

Note: True caramel syrup involves caramelizing the sugar (cooking it past melting point until golden). A quick coffee version uses brown sugar for caramel-adjacent flavor without the technical challenge.

Quick caramel syrup:

• 1 cup (200 g) light brown sugar
• 1 cup (240 ml) water
• 1 teaspoon vanilla extract
• Pinch of sea salt

Follow the basic method. The brown sugar gives toasty caramel notes; the salt rounds out the sweetness.

True caramel sauce (more complex):

1. Melt ½ cup granulated sugar in a dry pan over medium heat, swirling (not stirring) until golden amber.
2. Carefully add ½ cup warm cream or milk — it will splatter.
3. Whisk until smooth. Add a pinch of salt and 1 teaspoon butter (optional).
4. Cool and store.

Best in: caramel macchiato, vanilla latte, iced coffee

5. Hazelnut Syrup Recipe

Nutty and warm — popular in hazelnut lattes and mochas.

Add to the base recipe:

• 1–2 teaspoons hazelnut extract (find it in the baking aisle or online)
• Optional: steep 2 tablespoons crushed toasted hazelnuts for 15 minutes, then strain

Hazelnut extract is the most practical route — real hazelnuts don’t infuse their flavor as intensely as lavender or vanilla.

Best in: hazelnut latte, mocha, iced coffee

Shelf life: 2–3 weeks refrigerated.

Using Coffee Syrups: A Quick Guide

Rule of thumb: Start with 1 tablespoon per 8 oz and adjust upward. Cold drinks need slightly more sweetness because cold mutes flavor perception.

Coffee Syrup Storage Tips

• Glass jars are best — they don’t absorb flavors between batches.
• Label with the date — flavored syrups are easy to confuse.
• Keep refrigerated — room-temperature syrups go bad in 1–2 weeks.
• Use a clean spoon — introducing bacteria shortens shelf life significantly.
• Extend shelf life with a splash of vodka (1 tablespoon per cup of syrup) — this acts as a natural preservative without affecting flavor.

Shelf Life Summary

Scaling and Batch Making

For a home barista who makes 1–2 drinks per day, a half-batch (½ cup sugar + ½ cup water) is ideal — you’ll use it before it expires.

If you’re hosting or prepping for the week, double the batch and divide into two jars (one vanilla, one plain) so you have options.

Frequently Asked Questions

What is the ratio for simple syrup?

Standard simple syrup uses a 1:1 ratio of sugar to water (equal parts by weight or volume). For a richer, thicker syrup — ideal for cocktails and cold drinks — use a 2:1 ratio (2 parts sugar to 1 part water). For coffee drinks, 1:1 is most common because it dissolves easily and blends well with milk.

How do you make simple syrup for coffee?

Combine equal parts sugar and water in a small saucepan over medium heat. Stir until the sugar fully dissolves (2–3 minutes) — don’t let it boil vigorously. Remove from heat, cool to room temperature, then transfer to a glass jar or bottle. Add flavors (vanilla extract, lavender, etc.) before cooling. Store in the fridge for up to 4 weeks.

How long does simple syrup last?

Plain simple syrup lasts 2–4 weeks refrigerated in a sealed glass jar. Flavored syrups (lavender, hazelnut, vanilla) last 2–3 weeks. Brown sugar syrup lasts up to 2 weeks. Rich 2:1 syrup lasts longer than 1:1 due to higher sugar concentration. Signs it’s gone off: cloudiness, mold, or a sour smell. Always use a clean spoon.

What coffee syrups can I make at home?

You can make virtually any coffee syrup at home: vanilla (most popular), lavender, brown sugar, caramel, hazelnut, cinnamon, pumpkin spice, rose, cardamom, and more. Homemade syrups are cheaper, fresher, and free of preservatives compared to store-bought versions. Most take under 10 minutes.

How much simple syrup do I add to coffee?

For most lattes and coffee drinks, start with 1–2 tablespoons (15–30 ml) of simple syrup per 8 oz drink. Adjust to taste — sweet preference varies widely. Iced drinks often need slightly more than hot drinks because cold temperatures mute sweetness. For espresso martinis and other cocktails, recipes typically call for 0.5–1 oz (15–30 ml).

Can you use simple syrup instead of sugar in coffee?

Yes — simple syrup is actually better than granulated sugar for cold coffee drinks because sugar doesn’t dissolve well in cold liquids. Simple syrup mixes instantly into iced lattes, cold brew, and iced espresso. For hot drinks, regular sugar works fine, but syrup distributes more evenly. Use the same sweetness level: 1 teaspoon sugar ≈ 1 teaspoon (5 ml) simple syrup.

What is the difference between simple syrup and vanilla syrup?

Simple syrup is just sugar and water — pure sweetness with no flavor. Vanilla syrup is simple syrup with vanilla added (extract or vanilla bean), giving it a warm, aromatic sweetness. Vanilla syrup is one of the most popular coffee shop syrups because it complements espresso without overpowering it. You can make vanilla syrup by adding 1–2 teaspoons of vanilla extract to finished simple syrup.

Want to take homemade flavoring further? See our guide to homemade coffee creamer — condensed milk + cream + your favorite flavor makes a rich, store-bought-beating creamer in 5 minutes.

One drink-specific use case worth calling out: simple syrup is the cleanest way to sweeten a red eye — the drip-plus-espresso combo. Granulated sugar fights the texture of a red eye (it sinks through the drip layer but stalls in the denser espresso layer, leaving the bottom-third of the cup over-sweet and the top under-sweet); simple syrup distributes evenly the moment you stir, regardless of the temperature gradient between the freshly-poured espresso shot and the drip base. The same logic applies to iced red eyes, which most online recipes get wrong: they call for granulated sugar that never fully dissolves in the cold drip-and-ice base, leaving sugar grit in the last sip. A teaspoon of simple syrup solves that completely. 1-2 teaspoons per 10oz red eye is the right starting dose for someone who takes coffee on the lightly-sweet end of the spectrum.