Iced Brown Sugar Oat Latte

Featured in: Weekend Pecan-Style Treats & Snacks

This chilled beverage blends brown sugar syrup, oat milk, and espresso, shaken over ice to create a silky, creamy latte. The brown sugar syrup adds warmth and subtle spice with optional cinnamon and vanilla. Fresh espresso or strong brewed coffee infuses depth, balanced by the creaminess of oat milk. The drink is vegan, dairy-free, and easy to prepare in under 10 minutes, making it a quick, refreshing pick-me-up for any time of day. Adjust sweetness or use alternatives like maple syrup to customize flavors.

Updated on Tue, 23 Dec 2025 16:15:00 GMT
A tall glass reveals an Iced Brown Sugar Oat Latte, its frothy texture a pleasant, sweet treat. Save to Pinterest
A tall glass reveals an Iced Brown Sugar Oat Latte, its frothy texture a pleasant, sweet treat. | pecanthyme.com

There's something about the ritual of making this drink on a warm afternoon that just works. My roommate first made it for me when I was tired of the same iced coffee routine, and I remember thinking how the brown sugar syrup caught the light as it swirled into the cold oat milk. Now it's become my go-to when I need something that feels both comforting and energizing, and honestly, it takes less time than a coffee shop run.

I made this for a friend who usually orders the fanciest thing on the cafe menu, and watching her take that first sip was worth it. She kept asking what was in it, convinced I'd bought it somewhere, and there's something satisfying about a homemade drink that holds its own against the professional stuff.

Ingredients

  • Brown sugar: This dissolves into a syrup that coats your mouth in the best way—skip the refined stuff if you can.
  • Water: Just enough to create a syrup without making it too thin.
  • Ground cinnamon: Optional but worth it; it adds warmth without being obvious.
  • Vanilla extract: A small amount transforms the syrup from basic to rounded.
  • Espresso or strong brewed coffee: Cold espresso works better than room-temperature coffee here.
  • Oat milk, chilled: The thickness matters—some brands froth better than others, so cold is your friend.
  • Ice cubes: Fresh ice means your drink stays cold without diluting halfway through.

Instructions

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Make the syrup first:
Combine brown sugar and water in a small saucepan over medium heat, stirring occasionally. Once it's completely dissolved and looks glossy, kill the heat and stir in cinnamon and vanilla. The smell at this moment is half the appeal.
Brew your coffee:
Whether you're using an espresso machine or just making really strong brewed coffee, aim for something bold enough to stand up to the milk. If it's still hot, let it cool for a minute or two.
Build your shaker:
Fill a cocktail shaker or large jar with ice cubes until it's about three-quarters full. The cold surface matters because you're about to do some work.
Combine everything:
Pour about 1 to 2 tablespoons of brown sugar syrup into the shaker, followed by your espresso and chilled oat milk. Start with less syrup and taste as you go—you can always add more.
Shake with purpose:
Seal that shaker and shake hard for 15 to 20 seconds. You'll feel the temperature drop and hear the ice rattling louder. This is how you get the frothy, silky texture that makes it special.
Strain and serve:
Pour everything into a tall glass filled with fresh ice. The fresh ice prevents dilution, which matters more than you'd think.
Finish with flair:
A sprinkle of cinnamon on top looks intentional and adds a little extra flavor boost.
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| pecanthyme.com

One evening I made a batch for friends gathering on my balcony, and we ended up staying out there longer than planned just because the drinks looked and tasted so good. It became the kind of moment where simple things done with a little care actually matter.

The Syrup Strategy

Making your own brown sugar syrup feels fancier than it is, but the payoff is real. You get to control the sweetness and the flavor depth, and you can make a batch and keep it in the fridge for a week. I've found that doubling the recipe and storing it in a glass jar means I can make this drink without thinking about it.

Why Oat Milk Works Best

Not all oat milks are created equal when it comes to frothing, so this is worth paying attention to. Some brands have a richer, creamier texture that shakes into something almost like a milkshake, while others stay thinner and more liquid. Barista-blend oat milks tend to be the winners here, and once you find your favorite, stick with it.

Beyond the Classic Version

Once you nail the basic recipe, the fun begins. I've swapped brown sugar for maple syrup, added a splash of almond extract, or even tried a touch of cardamom when I was feeling adventurous. The structure is flexible enough to play with, which means you can make it feel new without starting from scratch.

  • Maple syrup creates a deeper, earthier sweetness that pairs beautifully with a shot of cold espresso.
  • A pinch of sea salt in the syrup balances the sweetness and adds complexity you didn't expect.
  • Decaf works just fine if you want the ritual without the caffeine late in the day.
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This Iced Brown Sugar Oat Latte shows off a creamy texture with a swirl of brown sugar syrup and ice cubes. Save to Pinterest
This Iced Brown Sugar Oat Latte shows off a creamy texture with a swirl of brown sugar syrup and ice cubes. | pecanthyme.com

This drink has a way of turning an ordinary moment into something worth savoring. Make it once and you'll understand why I keep coming back to it.

Your Questions Answered

How do I make brown sugar syrup?

Combine brown sugar and water in a saucepan, heat until dissolved, then stir in cinnamon and vanilla. Cool before using.

Can I use brewed coffee instead of espresso?

Yes, strong brewed coffee works well as a substitute for espresso in this drink.

What type of milk is best for this latte?

Chilled oat milk is recommended for its creamy texture and natural sweetness, complementing the brown sugar.

How should I shake the drink?

Use a cocktail shaker or jar with ice, add all ingredients, and shake vigorously for 15–20 seconds until frothy.

Can I make this caffeine-free?

Yes, use decaffeinated coffee or espresso to enjoy the drink without caffeine.

Are there any allergens in this drink?

It contains oats from the oat milk, so check for gluten if sensitive. It is free from dairy, soy, and nuts if using nut-free oat milk.

Iced Brown Sugar Oat Latte

Dairy-free iced oat latte with brown sugar syrup, espresso, and a frothy, refreshing finish.

Prep Time
5 min
Time to Cook
5 min
Total Duration
10 min
Author: Ethan Ward


Skill Easy

Cuisine American

Portions 1 Portion Size

Dietary Notes 100% Plant-Based, No Dairy

What You'll Need

Brown Sugar Syrup

01 2 tablespoons brown sugar
02 2 tablespoons water
03 1/4 teaspoon ground cinnamon, optional
04 1/2 teaspoon vanilla extract

Coffee & Milk

01 1 shot (1 fluid ounce) espresso or 1/4 cup strong brewed coffee
02 3/4 cup (6 fluid ounces) chilled oat milk
03 Ice cubes as needed

How to Make It

Step 01

Prepare Brown Sugar Syrup: Combine brown sugar and water in a small saucepan. Heat over medium, stirring until sugar fully dissolves. Remove from heat, stir in cinnamon and vanilla extract, then allow to cool.

Step 02

Brew Coffee: Prepare a fresh shot of espresso or brew strong coffee according to your preference.

Step 03

Assemble Ingredients with Ice: Fill a cocktail shaker or large jar with ice cubes.

Step 04

Combine Components: Add 1 to 2 tablespoons of the cooled brown sugar syrup, espresso, and chilled oat milk to the shaker.

Step 05

Shake Drink: Secure the lid and shake vigorously for 15 to 20 seconds until the mixture is well chilled and frothy.

Step 06

Serve: Strain the mixture into a tall glass filled with fresh ice. Optionally, garnish with a sprinkle of cinnamon and serve immediately.

What You'll Need

  • Small saucepan
  • Cocktail shaker or large jar with lid
  • Espresso machine or coffee maker
  • Tall glass

Allergy Details

Please check every ingredient for allergens and talk to a healthcare provider with any concerns.
  • Contains oats; verify oat milk gluten status if necessary. Free from dairy, soy, and nuts when using nut-free oat milk. Always check ingredient labels.

Nutrition Details (each serving)

Nutritional info is for reference and doesn't replace a professional's advice.
  • Caloric Value: 120
  • Total Fat: 2 g
  • Carbohydrates: 25 g
  • Proteins: 2 g