Simple Oat Milk Iced Coffee

I never thought I’d give up my daily coffee shop runs until my budget forced me to face reality. Those $6 oat milk iced coffees were adding up fast. Like many people, I grew up watching my parents brew plain hot coffee at home, and anything “fancy” meant going to a cafe.

But here’s the thing – making cafe-style iced coffee with oat milk at home isn’t complicated at all. Once I figured out the right method, I realized I’d been wasting money for years. Now I can make my favorite drink in my pajamas, and it costs just a fraction of what I used to spend.

What Kind of Oat Milk Should I Use?

For iced coffee, you’ll want to look for “barista” or “extra creamy” versions of oat milk, since these are specifically made to blend well with coffee and won’t separate or curdle when mixed with hot espresso. Regular oat milk works too, but it might not give you that rich, creamy texture that makes oat milk coffee so good. If you’re buying from the store, check the ingredients list – the best oat milks usually contain just oats, water, and maybe a little oil and salt, without a bunch of added sugars or preservatives. Just keep in mind that some brands can be a bit watery, so you might need to try a couple different ones to find your favorite for coffee drinks.

Options for Substitutions

This refreshing drink is pretty simple to customize. Here are some helpful swaps you can try:

• Oat milk: While oat milk gives this drink its signature creamy texture, you can use any plant-based milk like almond, soy, or coconut milk. Just note that coconut milk will add a tropical flavor, and almond milk might make it slightly thinner.
• Strong coffee/espresso: No espresso machine? No problem! Use cold brew concentrate, instant coffee (mixed with a bit of hot water), or double-strength brewed coffee that’s been cooled.
• Vanilla essence: You can skip the vanilla or try other flavors like a dash of cinnamon, a touch of caramel syrup, or even a sprinkle of cocoa powder for different taste variations.
• Ice cubes: Try freezing coffee into ice cubes instead of using regular ice – this way your drink won’t get watered down as the ice melts. You could also use crushed ice for a more slushy-like texture.

Watch Out for These Mistakes While Making

The biggest mistake when making oat milk iced coffee is using hot coffee and pouring it directly over ice, which leads to a watered-down drink – instead, let your coffee cool to room temperature first, or better yet, make cold brew concentrate ahead of time.

Another common error is shaking or vigorously stirring oat milk, which can make it slimy or separate – gentle stirring is key, and if you’re using a blender, keep it on the lowest setting.

To prevent a grainy texture, make sure to use barista-grade oat milk that’s specifically designed for coffee drinks, as regular oat milk often curdles or creates an unpleasant texture when mixed with acidic coffee.

For extra smoothness, try storing your glass in the freezer for 10 minutes before making your drink, and always add the ice last to maintain the perfect balance of flavors.

What to Serve With Oat Milk Iced Coffee?

This creamy iced coffee makes a perfect morning or afternoon pick-me-up, and it pairs really well with both sweet and savory breakfast treats. A warm, buttery croissant or slice of banana bread would make this drink feel like a cozy café experience at home. If you’re looking for something a bit more filling, try it alongside avocado toast or a bowl of overnight oats topped with fresh berries. For an afternoon treat, I love serving this iced coffee with a chocolate chip cookie or a slice of coffee cake – the combination of coffee and something sweet is always a winner!

Storage Instructions

Keep Cold: This oat milk iced coffee is best enjoyed right after making it while the ice is still fresh and the coffee is perfectly chilled. If you need to store it, keep it in the fridge without ice for up to 24 hours in a sealed container or mason jar.

Prep Ahead: Want to save time in the morning? Make a bigger batch of strong coffee or espresso and store it in the fridge. When you’re ready for your iced coffee, just pour the cold coffee over fresh ice and add your oat milk. The coffee concentrate will keep in the fridge for up to 1 week.

Quick Tip: If you’re planning to drink it later, store the coffee and oat milk separately – this keeps everything fresh and prevents any separation. When you’re ready to drink, just combine them with fresh ice and give it a good stir!

Preparation Time	5-10 minutes
Cooking Time	5-10 minutes
Total Time	10-20 minutes
Level of Difficulty	Easy

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 90-110
• Protein: 2-4 g
• Fat: 1-2 g
• Carbohydrates: 18-22 g

Ingredients

• 1/2 cup ice cubes
• 1 cup oat milk
• 3 tbsp strong coffee (or espresso)
• 1/4 tsp vanilla extract (pure vanilla extract for best flavor)

Step 1: Brew the Espresso or Coffee

Brew your espresso or coffee following the instructions on the package.

This will form the base of your iced vanilla latte.

Step 2: Cool the Espresso or Coffee (Optional)

If you have time, place the brewed espresso or coffee in the fridge for about 5 minutes to cool it down.

This step helps to ensure that your latte is not watered down by melting ice.

If you are pressed for time, you can skip this step.

Step 3: Froth the Oat Milk

Pour your desired amount of oat milk into a glass and froth it.

Refer to the notes for various frothing techniques if needed.

This process creates a light, creamy texture for your latte.

Step 4: Add Vanilla and Froth Again

Add a splash of vanilla extract to the frothed oat milk.

Quickly froth the mixture again to ensure the vanilla is well integrated and enhances the flavor throughout.

Step 5: Assemble the Iced Vanilla Latte

Fill your glass with ice cubes.

Pour the cooled or freshly brewed espresso on top of the ice.

For the final touch, pour the frothed oat milk and vanilla mixture into the glass.

Stir gently and enjoy your refreshing iced vanilla latte!