How to Make Bulletproof Coffee: Frothy Butter and MCT Recipe

Learn how to make bulletproof coffee and fill your kitchen with buttery aroma. Blending, not stirring, makes it velvety and café-smooth in just 10 minutes. Make it on slow mornings when you want a warm, unhurried start.

Why This Recipe Works

• Room-temperature butter emulsifies faster than cold: Softened butter breaks into tiny droplets under the blade, so the fat stays suspended instead of floating in greasy specks.
• Adding MCT oil last prevents clumping: MCT oil stays liquid at room temperature, so it spreads into a thin, clear layer that blends in smoothly.
• Brewing at 195-205°F extracts bold flavor: Coffee brewed in this range tastes rich and balanced, and it keeps the butter melting without scorching.
• Warm ceramic mug keeps foam thick longer: A preheated mug slows heat loss, so the golden foam stays on top while you sip.

Ingredients You'll Need

Hot Freshly Brewed Coffee: This is the base of the drink, one full cup brewed until dark, rich, and steaming. Strong coffee gives the blend its bold flavor, so the butter and oil have something deep to mix into. If you don't have brewed coffee, use about two shots of espresso stretched with hot water to one cup.

Unsalted Grass-Fed Butter: Softened butter gives the drink its velvety body and rich, buttery aroma. Let it sit on the counter until it dents easily, so it breaks into tiny droplets under the blade instead of floating as greasy specks. Ghee is the best swap, since it is pure butterfat and blends just as smoothly. Regular salted butter also works, but the drink will taste a bit saltier.

MCT Oil: MCT oil is a medium-chain fat that stays liquid at room temperature. Adding it last lets it spread into a thin, clear layer that blends into the frothy top without clumping. Melted coconut oil is the closest swap, but it has fewer MCTs, so expect a milder effect.

How to Make It (Step by Step)

Brew hot coffee, then blend it with softened butter and MCT oil until frothy and pale tan. Even if you have never used a blender for coffee, you will have a velvety cup in minutes.

1. Brew 1 cup (8 ounces) of coffee until it looks dark, rich, and steaming, 4-5 minutes at 195-205°F / 90-96°C.

2. Let the butter soften on the counter until it dents easily under light pressure, 10-15 minutes at 68-72°F / 20-22°C.

3. Pour the hot coffee into a blender jar until it is fully poured and steaming, 10-15 seconds at 185-200°F / 85-93°C.

4. Add the softened butter to the coffee until small golden pieces float on the surface and begin to melt, 15-20 seconds at 180-190°F / 82-88°C.

5. Pour the MCT oil into the blender jar until a thin, clear layer sits on top of the coffee, 5-10 seconds at 180-190°F / 82-88°C.

6. Blend on high until the surface turns frothy, pale tan, and velvety, 20-30 seconds at 180-190°F / 82-88°C.

7. Pour the frothy coffee into a warm ceramic mug until a thick golden foam tops the drink, 15-20 seconds at 150-160°F / 65-71°C.

Recipe Notes

• Storage: Bulletproof coffee tastes best fresh. Keep leftovers in a sealed jar in the fridge for up to 24 hours. It doesn't freeze well, since the butter and oil separate. Reheat gently on the stove, then blend again for 10 seconds.
• Key substitution: Out of MCT oil? Use refined coconut oil in the same amount. The drink will be a little less quick-burning, but still silky and rich.
• Make-ahead tip: Soften the butter up to two hours early. Keep it covered on the counter, or cut it into small cubes to speed things up.
• Common mistake: Don't microwave the butter until it runs. Melted butter can separate into greasy droplets, so aim for soft and dented, not liquid.

Serving size: 1 portion · Calories: 230 · Total Fat: 26g · Saturated Fat: 15g · Carbs: 1g · Fiber: 0g · Sugar: 0g · Protein: 1g · Sodium: 40mg

Tips and Tricks

• Equipment: Use a countertop jar blender: Its tall, straight jar and sealed lid let the butter and oil whirl into a smooth, stable foam.

• Temperature precision: Keep the mix at 180-190°F while blending: Cooler coffee leaves the butter stiff, so it won't whip into a velvety, pale tan foam.
• Common mistake: Blending with a loose lid: Hot coffee can spray across the counter and burn your hands. Seat the lid firmly before you switch the blender on.
• Flavour upgrade: Add a pinch of ground cinnamon: Stir it into the coffee before blending for a warm, spiced note. It's optional, but it's lovely.
• Texture tip: Pour slowly down the side of the mug: Gentle pouring keeps the golden foam sitting on top instead of sinking into the coffee.

Frequently Asked Questions

Can I make bulletproof coffee dairy-free or vegan without losing its creamy texture?

Swap the butter for 1 tablespoon of a firm plant-based butter block, softened the same way, which keeps the drink dairy-free. For a lactose-free option that still tastes rich, use 1 tablespoon of ghee in place of the butter.

Can I freeze brewed coffee in advance for a faster bulletproof coffee?

Yes, freeze brewed coffee in an ice cube tray for up to 3 months, or refrigerate it up to 3 days. Thaw cubes overnight in the fridge, then warm them in a small saucepan over low heat until steaming before blending with fresh butter and MCT oil.

Why does my bulletproof coffee look oily and separated after blending?

The blend was likely too short or the butter was still too cold to emulsify. Blend on high for another 20 seconds until the surface looks pale tan with no oil slicks.

What to Serve With This

• Orange and Fennel Salad: Bright citrus and crisp fennel cut through the butter's richness and leave your palate fresh.
• Lightly Toasted Sourdough with Lemon Zest: Crackly toast gives you a satisfying bite against the velvety, smooth coffee.
• Tart Raspberries with Lime Zest: Sharp, juicy berries wake your taste buds between creamy sips.
• Pickled Red Onion and Cucumber Salad: Tangy vinegar and cool cucumber balance the fat, and their crunch contrasts the smooth drink.