How to Make Starbucks Toffee Nut Syrup at Home

Toffee nut syrup is a brown-sugar syrup with a buttery, nutty flavour, and you can make a Starbucks-style version at home in about 20 minutes with a saucepan, brown sugar, water and toffee pieces, with an optional extract. Starbucks’ own menu copy describes its Toffee Nut Latte as “smooth espresso, steamed milk and an irresistible toffee nut-flavoured syrup, topped with whipped cream and crunchy toffee nut sprinkles”. That menu copy does not give the syrup’s recipe, so every home version is an approximation.

This guide sets out two published home recipes side by side, explains where they disagree, and covers storage, nut content and ways to use the syrup. Daily Home Coffee did not cook or taste-test these recipes; quantities and times come from the recipe authors named in each section.

What You’ll Need to Make Toffee Nut Syrup

Toffee itself is made by caramelizing sugar or molasses with butter, according to Wikipedia’s entry on the confection, and it is sometimes mixed with nuts. Both published recipes below melt store-bought toffee pieces into a brown-sugar syrup; extracts such as almond, hazelnut, vanilla or butter are optional additions, according to the recipe authors.

Ingredients

Two published recipes show the range. Both are for a small batch.

Ingredient	We are not Martha (Jan 2025)	Feast + West (Sep 2025)
Water	1 ¼ cups	½ cup
Brown sugar	1 cup, packed	⅓ cup light brown sugar
Granulated sugar	None	⅓ cup
Toffee pieces	½ cup (not chocolate-covered)	⅓ cup toffee bits
Extract	Optional: ¼ teaspoon almond or hazelnut extract	½ teaspoon almond extract
Salt	None (a salted version is listed as a variation)	A pinch
Stated yield	1 ¼ cups	16 servings

The We are not Martha recipe uses only three ingredients and relies on the toffee pieces for the butter flavour. Feast + West mixes white and brown sugar and adds almond extract for the nut note. Feast + West says light or dark brown sugar both work, and that vanilla or hazelnut extract can stand in for almond.

Gear

• A medium saucepan
• A spoon or whisk for stirring
• Measuring cups and spoons
• A strainer, since both recipes strain out the toffee remnants
• A clean jar or bottle with a lid for the fridge

Step-by-Step: How to Make Starbucks Toffee Nut Syrup

The method below follows the two recipes’ shared steps. Where they differ, the step says so.

The Cooking Process

1. Combine. Put the water, sugar and toffee pieces in the saucepan. Feast + West starts over medium heat and says to stir until the sugar dissolves.
2. Heat to a simmer. The two recipes part ways here. We are not Martha brings the mixture to a boil, then lowers the heat. Feast + West says not to let it come to a full boil, so that the sugar does not burn and turn bitter.
3. Simmer. We are not Martha simmers for about 10 minutes, “until syrup has thickened a bit”. Feast + West reduces the heat to low and cooks for 15 minutes.
4. Strain. Most of the toffee melts, but both recipes strain out what is left. Feast + West notes that the remnants include nuts from the toffee bits.
5. Add the extract off the heat. Both recipes stir in any extract after the pan comes off the burner. Feast + West’s reason is that heat can change the flavour of extracts.
6. Cool and chill. We are not Martha pours the syrup into a jar and lets it cool completely in the fridge before use.

If you are unsure which heat to use, the lower-heat approach is the one that addresses the bitterness problem directly: Feast + West attributes a bitter syrup to overcooking and burned sugar.

Perfecting the Flavor: Common Mistakes to Avoid

Using Chocolate-Covered Toffee

We are not Martha warns against buying chocolate-covered toffee bits by mistake. They still make a syrup, the author says, but the result is a chocolate toffee syrup rather than a Starbucks-style toffee nut syrup.

Boiling Too Aggressively

Feast + West’s tips are to stir often and keep the mixture at a low simmer so the sugar does not scorch. Its troubleshooting answer is plain: a bitter toffee nut syrup has most likely been overcooked.

Skipping or Substituting Extracts

Extracts are where you can push the flavour. We are not Martha lists these variations: a hazelnut or almond extract for a nuttier syrup, butter extract for a more buttery one, vanilla extract for more depth, a spice such as cinnamon or nutmeg, salt for a salted version, or instant espresso powder. It also suggests simmering real nuts in the syrup and straining them out.

Go easy with almond. A commenter on the Feast + West recipe said the almond extract dominated the toffee flavour, and the author replied that using less almond extract, or all brown sugar instead of the mix, could help. If you use vanilla, the site’s guide to vanilla extract in coffee covers what the label terms mean.

Expecting a Thin, Clear Syrup

A syrup made with toffee pieces contains butter. We are not Martha notes that when the syrup is chilled, the butter may separate and rise to the top; you can skim it off for a lighter syrup or shake the jar to blend it back in. The same author calls the result “a thicker syrup”. Plain simple syrup has no butter in it: Wikipedia’s entry on syrup describes it as a basic sugar-and-water syrup, one part sugar to one part water by volume.

How to Store Your Homemade Toffee Nut Syrup

Keep the syrup in a closed jar or bottle in the refrigerator. Both recipe authors give about a month in the fridge: We are not Martha says it “should stay fresh for about a month”, and Feast + West says “up to 1 month”. Those are the authors’ own figures, not a tested food-safety limit.

Do not store it in the cupboard. An Ask Extension food-safety expert, answering a question about simple syrup, wrote that “there is currently no research-tested recipe to create a safe, shelf-stable simple syrup”, that it is a TCS food (it requires time and temperature control for safety), and that the options are to refrigerate or freeze it.

Creative Ways to Use Toffee Nut Syrup Beyond Lattes

The obvious use is a home Toffee Nut Latte: espresso, steamed milk and the syrup, with whipped cream if you want the Starbucks finish. The recipe authors suggest more:

• Mochas and drip coffee: Feast + West suggests lattes, mochas and regular coffee with a little creamer.
• Iced coffee and cold brew: We are not Martha suggests hot and iced coffee. Feast + West suggests cold brew but warns that the syrup can be hard to mix thoroughly into a cold drink.
• Hot chocolate and tea: hot chocolate is on both lists, and We are not Martha adds black tea or chai.
• Cocktails: Feast + West suggests swapping it for the simple syrup in an espresso martini.
• Breakfast and dessert: pancakes, waffles, oatmeal, yogurt and ice cream all appear on the authors’ lists.

If you want a drizzle that sits on top of whipped cream rather than mixing in, a thicker sauce does that job better than a syrup; the site’s caramel sauce vs. syrup guide explains the difference.

Taste Profile: What to Expect

Expect a sweet brown-sugar base with a buttery note from the toffee and a nut note from whichever extract you choose. How nutty it tastes depends on the extract and the amount: the Feast + West comment thread is a reminder that almond can take over. Start with less syrup than you think you need, taste, and add more.

Frequently Asked Questions

Can I make toffee nut syrup without butter extract?

Yes. Neither of the two recipes above uses butter extract. In both, the butter flavour comes from the toffee pieces, which are made with butter. We are not Martha lists butter extract only as an optional variation for an extra buttery syrup.

Does toffee nut syrup contain nuts?

A homemade one may. We are not Martha points out that the Heath toffee pieces it uses list almonds among their ingredients, so its syrup is not nut-free; check the label on whatever toffee you buy. The same author writes that Starbucks’ own toffee nut syrup contained no actual nuts. On the drink side, Starbucks’ 2017 EMEA holiday announcement described its Toffee Nut Latte with hazelnut sprinkles and the note “This drink contains real hazelnuts”. If you are cooking for someone with a nut allergy, read every label rather than relying on the syrup’s name.

Why is my toffee nut syrup bitter?

According to Feast + West, the likely cause is overcooking: the sugar burned. Keep the heat low and stir often next time.

How much syrup should I use per drink?

Neither recipe gives a per-drink amount, and the Starbucks menu copy quoted above gives no syrup quantity. Start small, taste, and adjust.

Can I use this syrup in iced drinks?

Yes, but stir or shake well. Feast + West notes that the syrup can be hard to mix thoroughly into a cold drink, and blending it into a shake is one of its suggestions.

Toffee Nut Syrup at a Glance

A Starbucks-style toffee nut syrup is brown sugar, water and a toffee flavour source, simmered and strained. Choose the three-ingredient toffee-piece version for the simplest batch, or the Feast + West mix, which adds almond extract. Keep the heat low, add extracts off the heat, store the syrup in the fridge, and use it within the month the recipe authors suggest.