A simple, realistic keto coffee recipe made with hot coffee, butter, and optional MCT oil. It is creamy, frothy, low carb, and easy to make with a blender, milk frother, or immersion blender.

What is Keto Coffee?

Keto coffee is hot brewed coffee blended with fat, usually butter, ghee, MCT oil, or coconut oil, until it turns creamy and frothy. It is often called bulletproof coffee or butter coffee, and many people drink it as a low carb breakfast drink because it is rich, filling, and has little to no carbs.
I love this keto coffee because it turns a regular cup of coffee into something creamy, frothy, and a little more satisfying. It is simple to make, uses ingredients I usually already have, and feels almost like a latte without adding sugar.
I also like that it is easy to adjust. You can keep it simple with just coffee and butter, add MCT oil if that works for you, sweeten it a little, or add cinnamon, vanilla, or collagen for something different.
Ingredients You'll Need
Freshly brewed coffee: Use your favorite hot coffee for this recipe. A stronger coffee works best because the butter and MCT oil make the drink creamy and rich, almost like a latte.
Butter: I use salted butter because I like the flavor, but unsalted butter or ghee will also work. The butter is what gives keto coffee that rich, creamy texture.
MCT oil: This is optional, but it is a common ingredient in bulletproof coffee. If you are new to MCT oil, start with 1 teaspoon instead of a full tablespoon because too much at once can bother your stomach.
Sweetener: I like liquid stevia, but you can use your favorite keto-friendly sweetener or leave it out completely.
Salt: If you are using unsalted butter, a tiny pinch of salt can make the coffee taste richer and more balanced. Skip this if you are using salted butter.
How to Make Keto Coffee
- Brew your coffee first. I like to use strong hot coffee because the butter and MCT oil make it taste creamier, so a weak cup of coffee can get lost.
- Add the hot coffee, butter, optional MCT oil, and sweetener to a heat-safe blender. Vent the lid so steam can escape, then start the blender on low and increase the speed until the coffee looks creamy and frothy.
- Pour it into your mug and drink it right away while it is hot and foamy.
- You can also make keto coffee with a milk frother or immersion blender. Add the coffee and ingredients to a tall mug, then blend until the butter is melted and the top is frothy. A blender gives you the creamiest texture, but a frother is the easiest option for everyday mornings.
Blender, Frother, or Immersion Blender?
A blender will give you the creamiest, frothiest keto coffee because it fully blends the butter into the hot coffee. Just make sure your blender is safe for hot liquids, vent the lid so steam can escape, and start on low before increasing the speed.
A milk frother is the easiest option for everyday mornings. Add the butter, optional MCT oil, and sweetener to your mug with the hot coffee, then froth until the top is creamy. It may not get quite as thick as the blender version, but it is quick and works well.
An immersion blender is a good middle option. Use a tall, wide mug or jar so the coffee has room to move without splashing. Add about half of the coffee with the butter and optional MCT oil, blend until frothy, then add the rest of the coffee and blend again.
No matter which method you use, the goal is to blend the fat into the coffee instead of just stirring it. Stirring will melt the butter, but it usually leaves an oily layer on top instead of that creamy, latte-like texture.
Tips For The Best Frothy Coffee
- Use hot, freshly brewed coffee. The butter blends in better when the coffee is hot, and the finished drink tastes creamier.
- Start with 1 tablespoon of butter. You can use more if you like a richer coffee, but I think 1 tablespoon is a good starting point, especially if you are also adding MCT oil.
- Go slow with MCT oil. If you are new to it, start with 1 teaspoon instead of a full tablespoon. You can always add more next time.
- Blend instead of stir. Stirring will melt the butter, but it will not give you the same creamy, frothy texture. A blender, milk frother, or immersion blender works much better.
- Use strong coffee. Since you are adding fat to the coffee, a weak cup can taste watered down or flat. Strong brewed coffee gives you better flavor.
- Be careful blending hot liquids. Make sure your blender is safe for hot coffee, vent the lid so steam can escape, and start on low.
- Drink it right away. Keto coffee is best hot and freshly blended while the top is still foamy and creamy.
Variations
Vanilla: Add a splash of vanilla extract before blending. This gives the coffee a warmer flavor without adding sugar.
Mocha: Add 1 teaspoon of unsweetened cocoa powder and your favorite keto sweetener. This makes it taste more like a low carb mocha.
Collagen: Add a scoop of unflavored or vanilla collagen peptides before blending. This is an easy way to add a little protein without changing the texture too much.
Dairy-free: Use coconut oil, MCT oil, or coconut cream instead of butter. The flavor will be a little different, but it will still blend into a creamy coffee.
Serving Suggestions
Keto coffee can be filling on its own, especially if you make it with butter and MCT oil, but it also goes well with a simple low carb breakfast.
For something hearty, serve it with low carb biscuits and sausage gravy, eggs, bacon, sausage, or a breakfast casserole.
For something lighter, pair it with noatmeal, a low carb smoothie, Greek yogurt, or cottage cheese with a few berries.
If you want a family-friendly breakfast, keep your keto coffee for yourself and serve it alongside eggs, bacon, and toast or fruit for everyone else. That way you are not making separate meals, just adjusting the plate to fit different needs.
You can also drink keto coffee as a mid-morning option when you are not ready for a full breakfast yet. Just remember that it does have calories, so I like to think of it as part of the meal instead of plain coffee.
Common Mistakes To Avoid
Using too much butter: More is not always better. Start with 1 tablespoon of butter, especially if you are also adding MCT oil. You can always adjust it after you know how rich you like your coffee.
Adding too much MCT oil at once: If you are new to MCT oil, start with 1 teaspoon. A full tablespoon can be too much for some people at first.
Stirring instead of blending: Stirring melts the butter, but it does not fully blend it into the coffee. This usually leaves an oily layer on top instead of a creamy, frothy drink.
Using weak coffee: Since butter and MCT oil make the coffee richer, a weak cup of coffee can taste flat. Strong brewed coffee gives this recipe better flavor.
Forgetting it has calories: Keto coffee is low carb, but it is not calorie-free. I like to think of it as part of breakfast instead of the same as plain black coffee.
Frequently Asked Questions
They are very similar. Keto coffee is a general term for low carb coffee made with added fat, usually butter, ghee, MCT oil, coconut oil, or heavy cream. Bulletproof coffee usually refers to coffee blended with butter or ghee and MCT oil.
Yes, you can make keto coffee without MCT oil. Just use hot coffee and butter or ghee, then blend until creamy and frothy. MCT oil is common in bulletproof coffee, but it is optional.
Yes. You can use ghee, coconut oil, MCT oil, coconut cream, or heavy cream instead. The flavor and texture will change a little, but you can still make a creamy low carb coffee without butter.
For a strict fast, yes. Keto coffee has calories from the butter and optional MCT oil, so it is not the same as drinking black coffee. Some people still use it during intermittent fasting because it helps them stay full, but it is not calorie-free.
Keto coffee usually turns oily when it is stirred instead of blended. The butter melts, but it does not fully mix into the coffee. Use a blender, milk frother, or immersion blender to get that creamy, frothy texture.
For the smoothest iced keto coffee, use MCT oil, heavy cream, or coconut cream instead of butter. If using butter, blend it with hot coffee first, let it cool slightly, then pour over ice and drink right away.
Recipe Card

Keto Coffee Recipe (Easy Bulletproof Coffee With Butter)
Ingredients
- 12 ounces freshly brewed hot coffee
- 1 tablespoon butter salted or unsalted
- 1 teaspoon to 1 tablespoon MCT oil optional
- ¼ teaspoon liquid stevia or your preferred keto sweetener, optional
- Tiny pinch of salt optional, only if using unsalted butter
Method
- Add the hot coffee, butter, optional MCT oil, and sweetener to a heat-safe blender.
- Vent the blender lid so steam can escape. Start blending on low, then increase the speed and blend for 20 to 30 seconds, or until creamy and frothy.
- Carefully remove the lid and pour the coffee into a mug. Serve right away.
Notes
- If you are new to MCT oil, start with 1 teaspoon instead of a full tablespoon. You can always add more next time if you like it.
- The nutrition does not include MCT oil since it is optional. If you add 1 tablespoon of MCT oil, it will add about 130 calories and 14 grams of fat.
- Use a blender that is safe for hot liquids. Vent the lid so steam can escape, and start blending on low before increasing the speed.
- Do not blend hot coffee in a sealed personal blender cup unless your blender specifically says it is safe for hot liquids.
- A milk frother or immersion blender can also be used. A regular blender gives the creamiest texture, but a frother is the easiest option for everyday mornings.
- Keto coffee is best served right away while it is hot, creamy, and frothy.
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Lucy Phillips says
Please could you include some diary free receipes - thank you
jenniferbanz says
Most recipes you can substitute with a dairy free alternative.
Nimrah says
Hi Jennifer, is it okay for my kids to eat the foods I make following your recipes on here? Since these all cater to being Keto? I want to start this journey but don't feel like making two separate things for me and them lol Thanks! Love your blog !
Monika says
Have you found a way to reduce the calories? I like to drink a few cups of coffee a day and am thinking that would be a lot of calories. Thanks in advance. Btw, I'm addicted to your site!
Kutrenia Turner says
What type of collagen powder do you use, and MCT oil?
jenniferbanz says
I use Further Foods Chocolate collagen. I don't use MCT oil
Diane says
They are both delicious.First time I was brave enough to try.Every thing you make that I fix is fantastic!!!!!
jenniferbanz says
That means a lot, Diane. Thank you!
SHERRY Windom says
Hello!
How can I have the keto coffee without blender
jenniferbanz says
I give a few options in the post
Randy says
am i missing it or how much mct oil do i put in?
Gerald Benjamin says
I've been making keto coffees for my wife and I . I use 1 Tbsp of coconut oil and butter each, with stevia for taste.
Su says
I live in the UK - could I use instant coffee for this as I'm not very keen on freshly brewed coffee?
jenniferbanz says
yes!
Patricia says
Hi
Any coffee brand works?
jenniferbanz says
yep!
Stephanie says
How much MCT oil do you add?
Karen Elfrink says
Love this recipe,Thank you
jenniferbanz says
So glad it worked out for you, Karen!
Stephen says
Thanks for the immersion blender tip. It was perfect.
jenniferbanz says
Glad it worked out for you!
Liz says
Can you make this without stevia? My body doesn't tolerate any sweetener that isn't sugar.
jenniferbanz says
definitely!
Angelique Sinka says
Liz- same here I can only have sugar or maple syrup
Mary says
Get CHOCZERO it's a maple syrup but it's keto friendly, you can find it at Costco, I don't have one so I get it on Amazon lol. If you make KETO Pancakes it's awesome on them too