High Protein Iced Matcha Latte Recipe (10g Protein)

My iced matcha latte recipe gives you 10 grams of protein with no added sugar! It’s creamy, energizing, and has a subtle sweetness thanks to the vanilla protein powder. If you’re looking for a new, refreshing drink that has less caffeine than coffee, you’ve gotta try this easy iced matcha latte!

High Protein Iced Matcha Latte Recipe (10g Protein)

After making my copycat pink drink way lower in sugar than the original, I knew the Starbucks iced matcha latte would be next on my list to make.

According to their website, the iced Starbucks matcha lattes have 28 grams of sugar! No thanks, I’ll stick with mine that has 1 gram of sugar for the whole drink, but also has an added protein boost.

Green tea powder, vanilla protein powder, and your choice of milk are all you need for this creamy iced matcha latte. It’s a fraction of the price of a coffee shop, and it can be customized to your preferences!

The vibrant green color is really pretty, and it makes the perfect afternoon drink for a hot day.

Why choose matcha instead of coffee?

Matcha gives you a gentler energy boost compared to coffee. Instead of a quick spike and crash, matcha contains L-theanine, an amino acid that works with caffeine to create a steadier focus and calm alertness.

Some benefits of matcha include:

• Contains antioxidants that help fight free radicals
• Provides a gentler caffeine boost than coffee
• Supports focus and brain function
• Naturally pairs well with milk for a creamy texture

Because this latte also includes whey protein, it adds staying power with 10 grams of protein, making it a great option for mornings or early afternoons.

Why add protein powder to matcha?

Adding protein powder turns this drink into more than just a latte. It becomes a high-protein snack or breakfast drink that helps keep you full longer.

Benefits of adding protein powder:

• Adds 10 grams of protein to your drink
• Helps support muscle recovery and muscle growth
• Creates a thicker, creamier texture
• Adds natural sweetness without added sugar

You can use whey protein powder or vegan protein powder, depending on your dietary preference.

Simple ingredients you’ll need for the perfect iced matcha latte

Scroll down to view the recipe card below for the full ingredients list, nutrition facts, and step-by-step instructions.

• Warm water – Used to dissolve the matcha powder so it mixes smoothly without clumps.
• Ceremonial grade matcha powder – This high-quality green tea powder gives the latte its vibrant green color and smooth, earthy flavor.
• Unsweetened almond milk (or milk of choice) – Almond milk keeps this latte light and dairy-free, but oat milk, soy milk, coconut milk, or dairy milk will work too.
• Vanilla protein powder – Adds natural sweetness and boosts the drink with about 10 grams of protein.
• Ice – Keeps the latte perfectly cold and refreshing.

How to make this iced green tea latte recipe

Step 1: In a small bowl or cup, mix the small amount of warm water with the ceremonial matcha using a frother until it is fully combined.

Step 2: In your drinking glass, froth the milk with the protein powder. Add ice, pour in the matcha mixture, and enjoy!

Notes: New to matcha? Start with 1/2 tsp matcha powder and then gradually increase to 1 tsp if you like. Don’t have a frother? Use a shaker bottle or blender to mix everything up for a smooth texture.

Watch me make my protein matcha iced latte

The full how to video can be watched below, or on my YouTube channel!

Pro tips

If you’re new to making matcha at home, these tips will help prevent clumps and create a smooth texture:

• Use a small amount of warm water first: Whisking matcha with 3-4 tablespoons of warm water helps dissolve the powder before adding milk.
• Sift the matcha powder: This prevents clumps and gives your latte a smoother texture.
• Use about 1 tsp matcha powder: This amount creates the perfect balance of earthy flavor without tasting bitter.
• Blend or shake well: A milk frother, blender, or shaker bottle works great for mixing matcha evenly with protein powder.

Do you need a matcha bowl?

The short answer is no! But if you already have a matcha bowl and bamboo whisk, absolutely use them.

If you’re new to making matcha at home, an inexpensive milk frother will do the trick!

It’s all I’ve used for making matchas at home, and it works perfectly well. You’ll love this recipe with it!

Understanding grades of matcha

Matcha is made from finely ground young green tea leaves.

Understanding ceremonial grade matcha versus culinary grade matcha can be confusing.

Ceremonial-grade matcha is high-quality matcha powder and is more delicious to drink on its own. It is used in part of traditional Japanese tea ceremonies and is also a finer powder, making it easier to mix in. It has a really delicious, earthy flavor.

In contrast, culinary-grade matcha is better for recipes and has a more bitter taste.

Want to make this a hot drink instead?

You can absolutely turn this into a hot drink instead of an iced version.

I like to flip my amount of hot water with milk, so it’s less milky, and more hot water is used for a hot matcha latte recipe.

I also use about half the amount of protein powder in my hot version, but that is totally up to your preference! I like my iced drinks a touch sweeter than my hot drinks.

The way it is made is the same, so follow those steps listed above with the hot water swap and enjoy your delicious hot matcha!

What to pair your high protein matcha latte with

Are you enjoying your iced matcha at breakfast or as a midday pick-me-up? Here are some favorite recipes we enjoy with your high-protein matcha latte!

• Matcha overnight oats (seriously the best!)
• Banana breakfast cookies
• Chocolate chip chickpea muffins
• Spinach and feta egg bites
• High protein overnight oats
• No bake coconut balls
• Chocolate brownie baked oatmeal

Substitutions, optional variations & dietary adjustments

Below you’ll find a list of substitutions that will work well in this delicious iced matcha lattes recipe. 

If you try something different out, please leave a comment below letting us all know how it turned out!

Matcha powder – Try this recipe using black tea powder or chai tea powder instead!

Unsweetened almond milk – Use your favorite type of milk whether it’s cashew milk, oat milk, soy milk, hemp milk, coconut milk, or dairy milk. Looking for a pistachio flavor? Try this protein pistachio iced matcha recipe!

Vanilla protein powder – The protein powder sweetens this drink slightly. If you opt not to use protein powder, you can use a little maple syrup or simple syrup instead.

More cold drinks you’ll love

• Starbucks pink drink copycat recipe
• Cucumber celery green juice
• Vitamin C smoothie
• Raspberry arnold palmer
• Dairy free eggnog

If you try this easy matcha latte recipe, I’d love it if you left a star rating and comment below letting me know how it turned out!

XO

Heather

Originally published May 2024. Updated March 2026.