share this post

Bulletproof Coffee (Zero-Carb Keto Coffee)

4.70 from 59 votes
Jump to Recipe Pin This Recipe!

This recipe may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.

This creamy, smooth bulletproof coffee recipe is the best keto breakfast for coffee lovers. A Zero-carb keto coffee made of healthy fatty acids from MCT oil and butter.

Bonus, all you need to make this keto coffee recipe are 4 simple ingredients!

Coffee lovers, I have great news for you: coffee is keto-friendly.

Even better, you can make some delicious and easy keto coffee recipes that taste like your local coffee, at home in 5 minutes.

What’s A Keto Bulletproof Coffee?

Bulletproof coffee is a popular keto breakfast drink created by Dave Asprey.

It replaces your traditional cup of coffee or coffee latte. It is smooth and creamy as a latte coffee but does not contain any milk, sugar, or carbs.

Instead, it contains all the fatty acids you need to produce ketones quickly and keep your energy levels steady.

How To Make Bulletproof Coffee

Bulletproof coffee is very easy to make, in particular, if you have a good Espresso machine. It only takes 3 ingredients!


Ingredients for Keto Coffee with labels.
  • Hot Brewed Coffee – Since you must blend your ingredients together, it is very important to start with hot freshly brewed coffee. Instant coffee would work as well, but the flavor of your keto coffee won’t be as good.
  • MCT Oil – MCT Oil increases the sensation of fullness, improves gut health, and on a keto diet, it also promotes fat burning as it gives a quick supply of ketones to your body. You can swap MCT oil for extra-virgin coconut oil, but MCT oil is far more concentrated. In fact, MCT oil contains is entirely made of Medium-Chain Triglyceride compared to about 50%-60% in coconut oil. The main fatty acids from MCT oil are Caproic acid (C6), Caprylic acid (C8), Lauric acid (C12):  a powerful anti-fungal and antibacterial that shows benefits to your gut health and helps people on a candida diet.
  • Unsalted Butter – Grass-fed butter is added to keto bulletproof coffee for texture and creaminess. Butter (and Ghee) are very much keto-friendly because they contain barely any fat. While it also adds healthy fat to feel fuel and keep your energy level steady, it adds a smooth texture that MCT doesn’t have. A rich, creamy texture to your keto coffee recipe while adding fulfilling fat.


Step-by-step instructions for Blending The Keto Coffee
  1. A keto bulletproof coffee recipe is very easy to make with only 4 ingredients. However, the key to making a tasty keto coffee with butter is to use a blender!
    In fact, you must blend all your bulletproof coffee ingredients on the high-speed setting or the creamy coffee texture won’t form.
    If you don’t blend your brewed coffee with MCT oil and butter, it will result in two layers, coffee at the bottom and fat on top. It won’t taste good at all!
    Another option is to use an immersion blender or hand milk frother.
  2. Place all the ingredients in a tall mug, wide enough to fit your immersion blender or milk frother. Blend until creamy.

Want To Save This Recipe?

Enter your email & get this recipe sent to your inbox.

This field is for validation purposes and should be left unchanged.

Frequently Asked Questions

Does Bulletproof Coffee Break Your Keto Fast?

It’s the most common question on a keto diet. Technically, yes any calorie can break a fast. However, on a keto diet, fat is your fuel.
So if you only consume pure fat, no protein, no carbs during your fast, you won’t break it.
It means that drinking bulletproof coffee won’t hurt your fast at all. You will simply add more energy to your body and fullness that help you last your fast longer! So yes, you can drink one bulletproof coffee while fasting.
This will boost your fat-burning metabolism and help you fast longer without feeling hungry too quickly.

Should I Drink Bulletproof Coffee If I Am Not On Keto?

Since fat slows down your digestion, adding fat to your coffee creates a feeling of fullness and keeps your blood sugar level steady for longer.
It means that the benefits of adding fat or butter to coffee are great for anyone, not only people on a keto diet.
However, keep in mind that bulletproof coffees are high in saturated fat, and not suitable for people with cholesterol or some other health issues.
Also, if your body is not fat-adapted, meaning it is not used to using ketones as a source of energy, it won’t have the weight-loss benefits it brings to someone following a keto diet.

What Are The Potential Health Benefits Of Bulletproof Coffee?

The potential weight-loss effects of keto butter coffee are for people following a strict weight-loss keto meal plan.
Some of the bulletproof coffee benefits you may experience after drinking bulletproof coffee on a keto diet are:
– No energy crash, steady energy level
– Fullness and less hunger
– Increased mind focus
– Weight-loss
– Fighting the keto flu

What Can I Add To My Butter Coffee?

You can make your keto coffee even tastier by adding some of the following:
Collagen peptides – add 1 tsp of collagen powder, some are vanilla-flavored and will give a tasty vanilla flavor to your keto coffee.
Heavy cream – if you are not drinking this bulletproof coffee during your fasting period, feel free to add 1 tablespoon of heavy cream or unsweetened almond milk.
Sugar-free sweetener – make it sweet by adding safe keto sweeteners like 1-2 teaspoons of stevia drops or 1-2 tablespoons of erythritol.
A pinch of ground cinnamon on top – it doesn’t add carbs to your drink but a lovely cinnamon flavor

You can also try adding my keto pumpkin creamer or keto condensed milk to your bulletproof for extra flavors!

Why Should I Drink Bulletproof Coffee?

On a keto diet, your body is in a shortage of carbohydrates and cannot produce use glucose as a source of energy.
Instead, your body uses ketones, which can be consumed by your muscles or brain as an alternative source. So feeding your body with fatty acids that can quickly generate ketones is the key to:
– Keeping your energy levels steady,
– Feeling fulfilled and not hungry.
– Increasing your focus and mind clarity.
– Boosting your weight loss.
Bulletproof coffee is a coffee full of quality fat, like MCT oil and butter. MCT oil or Medium Chain Triglyceride is made of 3 fatty acids that have medium-length chains.
It means they are broken down fast, and they are quickly absorbed by your body to produce ketones, your source of energy in ketosis.
MCT oil in keto coffee goes straight into your liver to produce ketones.
Bulletproof coffee helps you lose weight faster on a keto diet because it provides a quick and steady source of fat to give your body energy and fullness.

More Keto Coffee Recipes

If you are a cold or hot coffee lover, I have plenty more keto recipes using coffee like:

Did You Like This Recipe?

Leave a comment below or head to our Facebook page for tips, our Instagram page for inspiration, our Pinterest for saving recipes, and Flipboard to get all the new ones!

Bulletproof Coffee

Keto Bulletproof Coffee

0.1gNet Carbs
An easy keto breakfast drink to boost fat burning, improve focus and replace your regular latte.
Prep: 5 minutes
Total: 5 minutes
Yield: 1 serve
Serving Size: 1 coffee
4.70 from 59 votes


  • 1 cup Hot Brewed Coffee
  • 1 tablespoon MCT Oil or extra-virgin coconut oil
  • 1 tablespoon Unsalted Butter or ghee


  • 1-2 drops Vanilla Stevia Drops or 1-2 tablespoons erythritol
  • ¼ teaspoon Ground Cinnamon
This recipe may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.


  • Add all the ingredients into a blender and blend on high speed until frothy and creamy, about 20 seconds.
  • Serve immediately.
Tried this recipe?Mention @sweetashoneyrecipes
Nutrition1 coffee
Yield: 1 serve


Serving: 1 coffeeCalories: 255.7 kcal (13%)Carbohydrates: 0.4 gFiber: 0.3 g (1%)Net Carbs: 0.1 gProtein: 0.3 g (1%)Fat: 29 g (45%)Saturated Fat: 21.4 g (134%)Cholesterol: 38.4 mg (13%)Sodium: 5.1 mgPotassium: 116.1 mg (3%)Sugar: 0.1 g
Carine Claudepierre

About The Author

Carine Claudepierre

Hi, I'm Carine, the food blogger, author, recipe developer, published author of a cookbook and many ebooks, and founder of Sweet As Honey.

I have an Accredited Certificate in Nutrition and Wellness obtained in 2014 from Well College Global (formerly Cadence Health). I'm passionate about sharing all my easy and tasty recipes that are both delicious and healthy. My expertise in the field comes from my background in chemistry and years of following a keto low-carb diet. But I'm also well versed in vegetarian and vegan cooking since my husband is vegan.

I now eat a more balanced diet where I alternate between keto and a Mediterranean Diet

Cooking and Baking is my true passion. In fact, I only share a small portion of my recipes on Sweet As Honey. Most of them are eaten by my husband and my two kids before I have time to take any pictures!

All my recipes are at least triple tested to make sure they work and I take pride in keeping them as accurate as possible.

Browse all my recipes with my Recipe Index.

I hope that you too find the recipes you love on Sweet As Honey!

Posted In:

Leave a comment

4.70 from 59 votes (55 ratings without comment)

Your email address will not be published. Required fields are marked *

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.

    21 Thoughts On Bulletproof Coffee (Zero-Carb Keto Coffee)
  1. 5 stars
    I noticed this recipe is for 8oz. of coffee. I drink more than that each morning. Can I increase the amount of coffee, butter and oil to match the 16oz I normally drink? Or is this amount of butter and MCT oil the daily recommended amount?

  2. DO you drink this during the fasting period or at the end? Example If I’m doing 7-11AM I would have this at 11Am to break my fast?

  3. 5 stars
    I use a T of heavy or full fat cream and a T of C8 only MCT oil so I don’t have to blend it with my noisy blender. Mixing works geat. I also add some Ceylon cinnamon, some medicinal mushroom powder and possibly a little suar free cacao.

  4. First, I want to thank you for so many fabulous recipes! Just curious…why does MCT oil and grass-fed butter not break your fast but heavy cream will?

    • Thanks for following my recipes ! Well, heavy cream contains carbs 3.7 g per 100 ml but MCT oil, coconut oil or butter contains zero carbs its pure fat, so it doesn’t impact your blood sugar level or ketosis. I hope it make sense, Enjoy the coffee! XOXO Carine

      • 5 stars
        I’ve made this the past 2 mornings and haven’t missed the cream like I thought I would. Thanks for your reply…really appreciate the insight! 🌞

  5. I have come across FB group pages on Keto saying that putting hot coffee in a blender might lead to an accident where the blender explodes due to the hot liquids being put in the machine. But I see that you just put the hot coffee in your blender as seen on the video. Have you encountered/heard other stories like these before? It makes me scared to try blending my BPC since I have an Oster Glass blender and not like yours which I am guessing is more expensive. Thanks for the tips.

    • If you keep the little “cap” to the blender lid off and place a kitchen towel with your hand lightly holding the towel in place over the exposed hole in the lid, you can blend away and you won’t have a mess in your kitchen. Works great every time!

    • Not all blender can handle warm liquid, but most of them can, especially if yours has a glass jug ! Glass resist really well to high temperature. Simply refer to the manufacturer manual to be sure your brand can blend hot liquid. Mine is a Kitchenaid and can handle soup and any liquid between 190F and 210F so it can easily blend a freshly brewed coffee. Another option as mentioned in the post is to place all the ingredients into a coffee mug or large tall recipient and use an immersion blender or milk frother. Enjoy, XOXO Carine


The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only.

The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sweeteners are excluded because they are not metabolized.

You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.