Low-carb London Fog Latte: Keto-friendly Recipe

In this post, I’ll teach you how to make a low-carb version of the Earl Grey Tea Latte, also known as London Fog Latte.

If you’re a Starbucks fan, then you’ve probably heard of this flavorful hot tea drink.

The original London Fog recipe consists of Earl Grey tea and steamed vanilla-flavored milk.

At Starbucks, there’s an additional ingredient – lavender flowers.

Tastewise, the lavender notes complement all the other London fog components excellently.

That’s why I decided to include loose-leaf lavender tea as part of my keto-friendly recipe. So you can pretty much call it a low-carb copycat Starbucks drink.

This homemade London Fog Latte contains only 1 net carb per serving, so it’s definitely perfect for those who follow a ketogenic regimen.

When it comes to calories – their count depends on whether or not you decide to add a source of fat and make your drink more energizing/bulletproof.

For example, if you add a teaspoon of MCT oil its calorie count may go up to 80 kcal per serving.

If you don’t, your DIY Earl Grey Tea latte will contain less than 45 kcal per serving.

The good thing is that at home you can easily customize your keto London Fog according to your preferences and needs.

If you feel like having an Iced Low-carb London Fog Tea Latte, check out this Woke Lark post.

With that being said, let’s move on to the recipe ingredients.


To make a keto London Fog Latte at home, you’re going to need the following ingredients:

  • Earl Grey Tea – 1 tea bag or 1 teaspoon of loose leaf tea.

    Earl Grey tea is bergamot-flavored black tea.

    What’s worth noting is that it contains caffeine. A cup of Earl Grey tea usually contains around 40 milligrams of caffeine. Keep in mind that this amount may vary depending on the steeping time and the tea brand you’re using.

    You can use two tea bags (or two teaspoons) of Earl Grey tea per serving in case you want a stronger (in terms of caffeine) low-carb London Fog latte.

    For this recipe, I used a tea bag of Earl Grey by Ahmad Tea.
  • Lavender Tea – 1 tea bag or 1 teaspoon of loose leaf tea.

    You can actually get a tea mix of Earl Grey and lavender tea, such as this one by Davidson’s.

    It’s perfect if you plan on making keto London Fog regularly.

    As you’ll see in the photos that I share later in the post, I didn’t have this type of London Fog mix at the time of making the recipe.

    To be fair, I prefer getting Earl Grey tea and lavender tea separately. This is so, as I’d occasionally make myself a cup of pure Earl Grey tea, and I’d also use the dried lavender flowers for other recipes.

    I used these dried lavender flowers by Kate Naturals.

    Even though their color wasn’t as bright as I expected, their flavor and aroma were perfect.
  • Water – 4 fl. oz. (120 ml)

    The water is necessary for steeping. I’ve found that a London Fog tea latte always tastes better if you steep the tea in water separately, not in the milk.

    Don’t use tap water, though. Best coffee and tea drinks are always made with either filtered or bottled water.
  • Unsweetened Almond Milk – 4 fl. oz. or 120 millilitres.

    If you’re on a low-carb diet, then you probably know that unsweetened almond milk is one of the keto staples.

    It contains only 1 net carb per 8 fl. oz. (240 ml) serving. Therefore it’s perfect for a keto London Fog.
  • Vanilla pod/Vanilla Extract – 1 vanilla pod/1 tsp. of vanilla extract.

    Recently I discovered how cool it is to use vanilla pods in homemade drinks.

    You can simply put a vanilla stick into your beverage and it will add a nice vanilla flavor.

    On top of that, the pod has a decorative purpose and also works great as a stirring tool.

    You don’t even need to split and scrape the seeds out of the vanilla bean to get some flavor out of it.

    Of course, do so, if you want your Earl Grey Tea Latte to have a better-pronounced vanilla flavor.

    Another option would be to use a teaspoon of vanilla extract and add it to the milk while heating it.

    A teaspoon of vanilla extract contains only 0.3 to 0.5 net carbs, so it’s perfect for this keto-approved tea drink.

    There are some great low-carb vanilla syrups available that you can use for this London Fog recipe. Check out this guide on keto-friendly coffee syrups where you’ll find listed some of the top products in this category (such as the Vanilla Syrup by DaVinci). If you decide to make your DIY Earl Grey latte with such a sugar-free syrup, add 2 tablespoons per serving.
  • Erythritol powder and/or Liquid Stevia – 1 teaspoon/ 3-4 drops.

    In case you decide NOT to use the aforementioned low-carb vanilla syrup, you’ll need some sort of a sweetener for your keto-friendly tea latte. Especially if you’re trying to recreate the Starbucks London Fog, which contains sugar.

    My go-to keto sweeteners are liquid stevia and erythritol powder.

    I’ve actually found that the combination of both results in the best flavor. So I add a teaspoon of erythritol and a few drops of liquid stevia to most of my homemade low-carb drinks.
  • MCT oil or another source of fat, such as Ghee or Coconut Oil (optional).

    If you’re on a ketogenic diet and you need to have a delicious homemade beverage that’s a bit more satiating and energizing, add a bit of MCT, Brain Octane, coconut oil, or ghee to your low-carb London Fog.

    For example, when I feel a bit hungry, but I know that there are at least 2 hours until my next meal, I’d add a teaspoon of MCT oil to my tea latte. It’s enough to provide me with energy and a sense of fullness.

    To find out more about bulletproof coffee and its potential health benefits, visit this guide. There you’ll also learn what’s the difference between MCT, Brain Octane and Coconut oil.

In the following photo, you can see all the keto London Fog ingredients that I used for the making of this post’s latte (except the MCT oil):

Before we move on to the recipe instructions, there’s another thing that I need to mention.

As you’ll see in the following section, for the making of my Lavender Earl Grey Tea Latte, I used a battery-operated milk frother, like this one by Zulay. This is an affordable, yet very useful device, which will make your latte frothy and will mix its ingredients perfectly well.

I often use this hand frother when making homemade coffee or tea drinks. It’s exceptionally convenient to use for mixing bulletproof coffee too.

I’ve found that there are also rechargeable drink mixers, like this one by FoodVille:

You can check it out on Amazon by clicking here.

Anyway, now that we have that out of our way, let’s move on to the recipe directions.

How to make a Keto London Fog: Recipe Instructions

To make a Keto London Fog at home, follow these steps:

  1. Add water to a saucepan and add dried lavender flowers into it.
  2. Bring to a boil and strain the lavender tea.
  3. Put in a teabag of Earl Grey tea and let it steep for 3 to 5 minutes.
  4. Pour milk into a saucepan.
  5. Add all the keto-friendly ingredients and bring to a simmer.
  6. Mix and froth the milk.
  7. Remove the Earl Grey tea bag.
  8. Pour the tea into a cup.
  9. Pour the frothy milk on top.
  10. Decorate with a vanilla pod.
  11. Here’s a photo of my homemade low-carb London Fog Latte:

    It’s quite tasty, I assure you!

    Now that you know how to make a Keto London Fog, you can prepare this delicious copycat Starbucks drink at home.

    Note. Did you know that you can actually order a keto-friendly London Fog Latte at Starbucks? Check out this guide on Starbucks keto drinks, where you can find out how to order more than 10 low-carb drinks that aren’t on the menu.

    If you don’t want to make the Starbucks version, don’t use dried lavender flowers and enjoy a classic low-carb Earl Grey tea latte.

    Yield: 1

    Low-carb London Fog Latte

    Low-carb London Fog Latte

    Find out how to make a keto-friendly London Fog (Earl Grey Tea) Latte at home. If you follow my guide, you will get to enjoy a delicious and cozy drink that contains only 1 net carb per serving.

    Prep Time 5 minutes
    Cook Time 2 minutes
    Total Time 7 minutes


    • Water - 4 fl. oz. (120 milliliters)
    • Earl Grey Tea - 1 teabag or 1 tsp of loose leaf tea
    • Lavender Tea - 1 teabag or 1 tsp of dried lavender flowers *(see notes)
    • Unsweetened Almond Milk - 4 fl. oz. or 120 milliliters
    • Vanilla pod (1)/Vanilla Extract (0.5 to 1 tsp)/Keto Friendly Vanilla Syrup (1 to 2 tbsp)*
    • Erythritol Powder - 2 tsp, or Liquid Stevia - 3 to 5 drops *
    • MCT Oil (optional)*


    1. Add water to a saucepan and pour the dried lavender flowers into the water.
    2. Bring to a boil and strain the lavender flowers.
    3. Put a teabag of Earl Grey tea into the lavender-infused water.
    4. Let the tea bag steep for 3 to 5 minutes.
    5. While steeping, pour milk into a saucepan.
    6. Add the sweeteners and the MCT oil to the milk.
    7. Bring the milk to a simmer.
    8. Mix and froth the milk.
    9. Remove the Earl Grey teabag from the water
    10. Pour the tea into a cup.
    11. Pour the frothy milk on top of the tea.
    12. Decorate with a vanilla pod.


    *Instead of using Earl Grey tea and dried lavender flowers separately, you can get a London Fog tea mix of Lavender and Earl Grey tea. If you have such a mix at hand, steep 1 to 2 teaspoons of tea in 4 fl. oz. (120 ml) of off-the-boil water for 3 to 5 minutes while preparing the milk.

    *Instead of using a Vanilla pod or a Vanilla extract, you can use a low-carb Vanilla Syrup (1 to 2 tablespoons). If you decide to do so, you won't need to add erythritol or liquid stevia.

    *I've found that using both liquid stevia (3 drops) and Erythritol (1 tsp) for my homemade low-carb drinks works best in terms of flavor. Nevertheless, if you don't have both keto-friendly sweeteners at hand, use 2 tsp of erythritol, or 4-5 drops of liquid stevia.

    *You don't need to add MCT oil to your keto London Fog Latte. Nonetheless, if you follow a ketogenic regimen and you need to have a more satiating and energizing tea drink, you can add a teaspoon or two of MCT oil. Adding a bit of coconut oil or ghee is also an option if you don't have MCT oil.

    I hope that you found my recipe useful!

    If you have any questions, feel free to post them in the comment section below.

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