Step 1: In a small bowl, add 1 1/2 cubes of butter. If the butter isn't softened, microwave it for about 45 seconds until soft but not melted. Stir well, then add the honey. Mix until fully combined and set aside.

Step 2: In a mixer, add the eggs and sugar. Beat on high speed for about 5 minutes, or until the mixture becomes creamy and fluffy.

Step 3: Add the butter and honey mixture to the mixer, followed by vanilla extract, the flour and baking powder. Mix on low speed until the flour is fully incorporated, being careful not to overmix.

Step 4: Prepare a bundt pan by spraying it with non-stick cooking spray (like Pam). Pour 2/3 of the batter into the prepared pan, spreading it evenly.

Step 5: To the remaining 1/3 of the batter, add the cocoa powder. Gently fold the cocoa powder into the batter until well-mixed.

Step 6: Pour the cocoa mixture over the batter in the bundt pan. As the cake bakes, the mixtures will blend, creating a marbled effect.

Step 7: Place the bundt pan in the oven and bake at 350°F for 25-35 minutes, or until a toothpick inserted into the center comes out clean. Be careful not to overbake, or the cake will turn out dry.

Step 8: Remove from the oven and let cool before inverting the cake onto a serving plate. Enjoy!