What Is Buttered/Bulletproof Coffee? Buttered coffee is a breakfast of butter and/or MCT oil blended into coffee. The standard recipe is as follows: 2 cups coffee (Upgraded™ coffee) 2 tbsp. butter (unsalted grass fed) 2 tbsp. MCT oil (a mixture of coconut and palm-kernel oils) Bulletproof® coffee was invented by entrepreneur, blogger, and paleo proponent […]