Keto Butter Coffee (Bulletproof)
Creamy, frothy butter coffee that fuels your morning with steady energy and zero crash. Grass-fed butter and MCT oil blend into a latte-smooth cup at under 1g net carb per serving, ready in just 5 minutes flat. The ultimate keto coffee.
Head of Nutrition · June 17, 2026
Nutrition per serving
Per serving · makes 1. Values are estimates; brands vary.
This blended keto butter coffee turns your morning cup into a frothy, latte-smooth source of clean, lasting energy. Grass-fed butter and MCT oil emulsify into a rich foam that keeps you full and focused without a single gram of sugar.
Ingredients
- 8 oz freshly brewed hot coffee (about 1 cup)
- 1.5 tbsp grass-fed unsalted butter
- 1 tbsp MCT oil (or refined coconut oil)
- 1/4 tsp pure vanilla extract (optional)
- 1 pinch ground cinnamon (optional)
- 1 pinch fine sea salt
- 2 to 3 drops liquid monk fruit or stevia (optional, to taste)
Instructions
- 1
Brew 8 oz of strong, hot coffee using your usual method and pour it into a tall, heat-safe blender jar or blending cup.
- 2
Add the grass-fed butter, MCT oil, vanilla, cinnamon, sea salt, and optional sweetener.
- 3
Blend on high for 20 to 30 seconds until the coffee is emulsified, glossy, and topped with a thick, latte-like foam.
- 4
Pour into your favorite mug and drink immediately while hot and frothy.
Tips & notes
- Always use a blender, immersion blender, or milk frother — stirring alone leaves an oil slick on top instead of a creamy emulsion.
- New to MCT oil? Start with 1 tsp and work up to 1 tbsp over a week to avoid digestive upset.
- For a richer cup, swap 1 tbsp of MCT oil for 1 tbsp heavy cream (adds about 50 cal and 0.4g carb).
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Frequently asked questions
- How many carbs are in keto butter coffee (bulletproof)?
- Each serving has about 0.5g net carbs (0.5g total carbs, 0g fiber), 270 calories, 0.5g protein, and 31g fat. This recipe makes 1 serving (one 8 oz mug).
- Does butter coffee break a fast?
- Technically yes — at 270 calories it ends a strict water fast. But because it is nearly all fat and under 1g net carb, it won't spike insulin and is popular for fat fasting or as a low-carb meal replacement that keeps you in ketosis.
- Can I make bulletproof coffee without MCT oil?
- Yes. Substitute an equal amount of refined coconut oil, or use 2 tbsp grass-fed butter total. The carbs stay at roughly 0.5g per serving, though MCT oil digests faster for quicker energy.
