Vanilla Cold Brew Recipe for Smooth, Easy Iced Coffee

Vanilla cold brew is coffee steeped slowly in cold water, then strained and served over ice with milk or water. A little vanilla extract gives the concentrate a mellow sweetness without masking the coffee, and the hands-off refrigerator steep makes a smooth base for café-style drinks at home.

Ingredients

1 cup (85 g) coarsely ground coffee
4 cups (950 ml) cold filtered water
1 teaspoon (5 ml) pure vanilla extract
Ice, for serving, about 3 cups (420 g)
Milk or water, for diluting, about 3 cups (720 ml), or to taste
Optional: 2 tablespoons (30 ml) simple syrup or maple syrup, for a lightly sweetened concentrate

Instructions

Combine the coffee and water. Put the coarse coffee grounds in a large jar or covered pitcher, then pour in the cold water. Stir gently for about 30 seconds, making sure all the grounds are wet. A spoon is enough; vigorous whisking can make the finished drink cloudier and is not needed for extraction.
Steep in the refrigerator. Cover the container and refrigerate for 15 hours. This gives the water time to draw flavor from the grounds without heat. If you prefer a lighter, less intense concentrate, you can strain it at 12 hours; for a stronger result, steep up to 18 hours. Avoid leaving it to steep indefinitely, since an overly long extraction can taste woody or harsh.
Strain the coffee. Set a fine-mesh sieve over a clean bowl or pitcher and line it with a coffee filter or a piece of clean, fine-weave cloth. Pour the mixture through slowly. Let it drain on its own rather than pressing or squeezing the grounds, which can force fine particles into the concentrate and make it gritty. If the first strain still looks cloudy, pass it through a fresh filter once more.
Flavor the concentrate. Stir the vanilla extract into the strained coffee. If using syrup, add it now and stir until evenly mixed. Taste a small spoonful before adding more sweetener; the concentrate is meant to be diluted, so it will taste more intense on its own than in the finished glass.
Make each drink. Fill a glass with ice. Add ½ cup (120 ml) concentrate and ½ cup (120 ml) cold water or milk, then stir. Taste and adjust with more milk or water for a gentler cup, or add extra concentrate for a bolder one. The yield is about 3 cups (720 ml) of strained concentrate, enough for roughly six drinks at this ratio.

Tips

Choose coarse grounds. Aim for a texture like coarse sand or kosher salt. Finely ground coffee can slip through the filter and may extract too quickly, giving the drink a dusty texture or a more bitter edge. If you buy whole beans, grind them shortly before steeping for a more noticeable coffee aroma.
Use coffee you enjoy drinking. Medium- or dark-roast beans make a rounded, familiar cold brew, while lighter roasts can have brighter, fruitier notes. Very smoky or strongly flavored beans can compete with vanilla, so start with a straightforward coffee if you want the vanilla to stand out.
Keep the grounds submerged and the vessel covered. Stir once at the beginning so dry pockets do not remain on top, then leave the mixture alone. A lid keeps the coffee from picking up refrigerator odors. Do not top up the jar partway through steeping; changing the water-to-coffee ratio makes the strength harder to predict.
Sweeten the drink, not just the concentrate. Cold liquids do not dissolve granulated sugar easily. Simple syrup, maple syrup, or another liquid sweetener blends more smoothly. For unsweetened coffee, leave it out and let each person sweeten their own glass.

Serving Suggestions

For a classic iced vanilla cold brew, dilute equal parts concentrate and cold water, pour over a full glass of ice, and add a splash of milk or cream if you like. Oat, soy, almond, and dairy milk all work; choose an unsweetened version if you want to control the sweetness yourself. A small pinch of cinnamon on top adds aroma, while a little extra vanilla extract in an individual glass can boost the vanilla note without sweetening it.

For a creamier drink, use ½ cup (120 ml) concentrate with ¾ cup (180 ml) milk and plenty of ice. For a less diluted, stronger-tasting coffee, start with ¾ cup (180 ml) concentrate and ¼ cup (60 ml) water. If you are serving a group, set out the concentrate, ice, milk, water, and sweetener separately so everyone can adjust their glass. Add ice just before serving rather than to the storage pitcher, where it would melt and weaken the batch.

Variations

Vanilla sweet cream style: Stir 2 tablespoons (30 ml) heavy cream and 1 teaspoon (5 ml) simple syrup together, then spoon or pour a little over each prepared glass. For a lighter topping, use half-and-half or milk; it will be less rich but still adds a creamy finish.
More pronounced vanilla: Increase the extract in the finished concentrate from 1 teaspoon (5 ml) to 1½ teaspoons (7 ml), tasting as you go. Vanilla extracts vary in strength, so adding it gradually is more reliable than pouring in a large amount at once. A small amount of vanilla bean paste can also be used, though it may leave tiny dark flecks.
Spiced cold brew: Add one cinnamon stick to the coffee and water before steeping, then remove it when you strain the grounds. The flavor is gentle after a 15-hour steep. Ground cinnamon is harder to filter and can leave sediment, so use a stick if you want a clear concentrate.
Decaf or half-caf: Replace the regular coffee with coarse-ground decaffeinated beans, or combine equal amounts of regular and decaf coffee while keeping the total at 1 cup (85 g). The method and steeping time stay the same; the cup’s flavor will depend on the beans you choose.
Chocolate-vanilla glass: Stir 1 teaspoon (5 ml) chocolate syrup into a single serving before adding milk. This makes the drink sweeter and more dessert-like, so taste before adding any additional sweetener.

Storage and Reheating

Keep the strained concentrate in a clean, covered jar or pitcher in the refrigerator and use it within 3 to 4 days for the best flavor. Refrigerate it promptly, within 2 hours of making or serving; do not leave the batch sitting on the counter. Store the concentrate without ice or milk so it stays at its intended strength and you can make each glass fresh. If it develops an unusual smell, appearance, or taste, discard it rather than trying to use it.

Cold brew is usually served chilled, so it does not need reheating. If you want a warm drink, gently heat one diluted serving in a small saucepan or microwave-safe mug until it is comfortably hot, then drink it promptly. Avoid boiling the concentrate, which can make the flavor seem harsher. For meal prep, freeze extra concentrate in a freezer-safe container or ice-cube tray; thaw it in the refrigerator and use it soon after thawing. Leave room in any container for expansion as it freezes.

Frequently Asked Questions

Can I make vanilla cold brew without a special cold-brew maker?
Yes. A clean jar or covered pitcher, a fine-mesh sieve, and a coffee filter or fine-weave cloth are enough. Pour slowly when straining, and give the filter time to drain. A purpose-made brewer can make cleanup easier, but it is not necessary for this recipe.

Can I use regular pre-ground coffee?
You can, but many bags of pre-ground coffee are ground more finely than ideal for cold brew. The result may be cloudier and can taste stronger or more bitter. If that is what you have, shorten the steep to about 10 to 12 hours and filter it carefully through a paper coffee filter. Coarse-ground coffee gives the clearest, most predictable result.

Why does my cold brew taste weak?
Check the serving ratio first: the concentrate is intended to be diluted, but adding too much water or milk can make a glass seem thin. Use ½ cup (120 ml) concentrate to ½ cup (120 ml) mixer as a starting point, then adjust. If the concentrate itself tastes weak, confirm that the grounds were fully wet and steeped for at least 12 hours, and measure the coffee and water rather than estimating.

Why is my cold brew bitter or gritty?
Bitterness can come from a very long steep, fine grounds, or coffee that is simply too intense for your preferred taste. Strain at 12 to 15 hours next time, and use a coarse grind. Grit usually means the filter was too open or the grounds were pressed during straining; use a paper filter or fine cloth and let the liquid drain without squeezing.

When should I add the vanilla?
Add the extract after straining, as directed, so its aroma stays clear and you can adjust the amount without changing the steep. If you prefer a subtle flavor, begin with ½ teaspoon (2.5 ml), mix, and taste a diluted glass before adding more. Vanilla extract is concentrated, and a small difference can be noticeable in a batch.

Can I make a smaller batch?
Yes. Keep the same ratio of 1 cup (85 g) coffee to 4 cups (950 ml) water, and reduce the vanilla in proportion. For half a batch, use ½ cup (42 g) coffee, 2 cups (475 ml) water, and about ½ teaspoon (2.5 ml) vanilla extract. Use a container that allows you to stir the grounds and water together easily, and keep the same steeping time.

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