Iced Matcha Latte Recipe Oat Milk {Easy 3-Minute Recipe}

Make your own refreshing, antioxidant-packed iced matcha latte at home with this easy, 3-minute iced matcha latte recipe oat milk. 

This post contains affiliate links. This means, if you click a link and make a purchase, I may earn a small commission at NO extra cost to you. Thank you. 💚

I have ALWAYS loved iced matcha lattes. When I order one from Starbucks’, I always ask for an extra scoop of matcha. 

They’re just so flavorful, bright, and refreshing. An immediate pick-me-up. 

I recently became obsessed with oat milk after trying Starbucks’ Iced Brown Sugar Oatmilk Shaken Espresso. It’s creamy and delicious. 

I started to make my own version of Starbucks’ Iced Brown Sugar Oatmilk Shaken Espresso at home because it costs $7. If you would like me to post that recipe, please let me know in the comments below.  It's here!! Check out this Brown Sugar Shaken Espresso Recipe.

So I decided to start making iced matcha lattes at home too. They’re incredibly easy-to-make, ready in minutes, and a fraction of the price of a matcha latte at a local coffee shop. 

This iced matcha latte recipe can be made with your milk of choice - plant-based or dairy. But, oat milk is my current favorite milk. It makes a creamy iced matcha latte. 

If you would prefer a hot matcha drink, try this Starbucks hot matcha green tea latte recipe.

To make more coffee shop drinks at home, check out:
- Iced Guava White Tea Lemonade
- How to Make Starbucks Chai Tea Latte Iced
- Pumpkin Chai Latte Recipe
- Matcha Chai Latte Recipe

What do you need to make a homemade iced matcha latte?

This iced matcha latte recipe oat milk has only three ingredients, not including ice cubes, which are optional, and the 1 tablespoon of hot water used to dissolve the matcha powder.  

The three simple ingredients are:

Matcha Powder 

Matcha powder is a fine green tea powder made from whole green tea leaves. 

It has lots of health benefits and less caffeine than coffee. To learn more about the health benefits of matcha, check out Healthline’s “7 Proven Ways Matcha Tea Improves Your Health".

For best results, use a high-quality matcha powder for a delicious iced matcha latte that tastes like it came from your favorite coffee shop. 

You do not need to buy a super expensive ceremonial grade matcha powder though. 

I’m on a budget and use premium matcha powder from the tea aisles of my local grocery stores or buy it on Amazon. 

Currently, I’ve been using this RISHI Organic Everyday Matcha Powder to make iced matcha lattes with oat milk and it’s great. It tastes fresh and is vibrant green. 

When you open a high quality matcha powder, the fine powder will have a beautiful, vibrant green color. As it gets old, it will start to lose that color and become a dull, brownish green. When this happens, you’ll want to replace your matcha green tea powder with a new one. 

If you have a favorite matcha powder, definitely use that in this recipe to make a perfect iced matcha latte. 

If you’re a matcha lover, you should also try:
- Matcha Brownie Recipe (without White Chocolate)
- Best Matcha Cookie Recipe - Easy, Soft, & Chewy
- How to Make Strawberry Matcha Latte
- Matcha Coffee Recipe

Sugar 

Or sweetener of your choice. Most coffee shops, including Starbucks, add sweetener to their iced matcha tea lattes. 

Starbucks’ matcha powder is already sweetened. It’s included in the powder. 

So, in this iced matcha latte recipe oatmilk, the very first step is to combine the sugar and the matcha powder.

Stevia can easily be used instead of sugar. Brown sugar is also another possible alternative to granulated sugar.  

If you would like to sweeten your drink with honey, maple syrup, or agave syrup, please add it after we combine the matcha powder with hot water. This will help the honey or syrup to dissolve fully into the matcha mixture.

Oat Milk

This easy iced matcha latte can be made with any type of milk - coconut milk, soy milk, whole milk, cashew milk, etc 

For a dairy-free matcha latte, use a non-dairy milk of your personal preference. 

I prefer to use oat milk for its creamy texture and delicious flavor. 

I don’t like to use almond milk in a green tea latte. It makes a thin, watery iced latte.  Which is not nearly as comforting or refreshing as a delicious oat milk matcha latte.

How to make matcha tea without whisk?

The traditional way to prepare matcha tea is to sift the matcha powder into a small bowl. 

Then, pour in a small amount of hot water and whisk vigorously to evenly disperse the powder in the water. 

I don’t have a special matcha whisk, like this Bamboo Whisk - Traditional Matcha Whisk Made from Durable and Sustainable Golden Bamboo.

So it’s definitely possible to make a homemade latte without it. 

There are other ways to avoid, or at least minimize, clumps of matcha in your latte. 

My Starbucks’ matcha green tea lattes have always had lumps of matcha in them, so I don’t mind some lumps. 

If you want a completely smooth matcha latte, I recommend putting the matcha mixture (matcha powder, warm water, and sweetener) and oat milk in a blender. 

You could also use a milk frother to remove any lumps. Jade Leaf has this Electric Matcha Whisk + Milk Frother - Barista Style Preparation for Matcha Green Tea & Lattes that I'm thinking about purchasing.

My favorite way to combine the matcha mixture and the oat milk with the least amount of clumping is to use a mason jar with a lid. 

I put the ingredients in the mason jar, put on the lid, and shake like crazy. This seems like the best way. 

If you still have clumps of matcha powder after doing this, you can pour the latte through a mesh tea strainer. 

The best part of using a mason jar is that you can make this delicious matcha latte ahead of time. 

Store it in a mason jar with a lid, without ice, in the fridge for up to a week. 

You can prep several matcha drinks in mason jars or other airtight containers and store them in the fridge, so you can have a delicious drink ready-to-drink every morning with little to no effort.  

Just remember to shake the matcha oat milk latte before drinking. The matcha powder will settle at the bottom of the latte and be clumpy again. 

How much caffeine in matcha green tea?

This iced matcha latte recipe oat milk includes 2 teaspoons of matcha powder. 

I like my matcha drinks on the stronger side. You can easily adjust this amount to your taste. 

According to “Matcha vs. Coffee: Which Is Healthier?” On usnews.com, “A ½ teaspoon of powdered matcha has about 20 to 39 milligrams of caffeine.”

Which means, this oatmilk matcha latte recipe, as written, has about 80 to 156 milligrams of caffeine. 

If you reduce the recipe to use just 1 teaspoon of matcha powder, there will be about 40 to 78 milligrams of caffeine in your iced latte. Which is less than a cup of coffee. 

An 8-ounce cup of brewed coffee has around 95 milligrams of caffeine.

How many calories are in this iced matcha latte recipe oatmilk?

This iced matcha latte with oat milk has 156 calories.

I use Oatly Oatmilk because that is the brand that Starbucks uses in their drinks with oat milk. They use the Oatly Barista Edition Oatmilk though, which has more calories than the original.

The original Oatmilk has 120 calories in 1 cup. 

The matcha powder in this recipe has 12 calories.

And the sugar in this recipe adds 24 calories. 

If you made this iced matcha recipe, I’d love to hear your thoughts on it in the comments below.

I’d also love to see any photos of your latte or latte making process. Tag or mention @lovemischka on Pinterest, FB, Insta, or TikTok.