Preheat your oven to 350 degrees Fahrenheit. While it heats up, line a 12-cup cupcake/muffin tin with cupcake liners. I like to lightly spray the liners with non-stick spray to ensure the cupcakes peel off easily.
In a microwave-safe bowl, melt the canola oil, butter, and semi-sweet chocolate chips together. Heat in 30-second increments, stirring well in between, until everything is completely smooth. This step is crucial; I find the microwave method to be so convenient!
In a medium bowl, whisk together the all-purpose flour, baking soda, baking powder, cocoa powder, and salt. Make sure they are thoroughly combined to avoid any lumps in your batter.
In a large mixing bowl, whisk together the eggs, granulated sugar, light brown sugar, and vanilla. Beat until the mixture is smooth and creamy. Now, add the cooled butter, oil, and chocolate mixture, whisking until combined.
Next, alternate adding half of the dry flour mixture and half of the Greek yogurt to the wet ingredients. Repeat this process until all components are incorporated. Be careful not to overmix; it’s okay if there are a few lumps!
Finally, gently stir in the boiling water or coffee. This step enhances the flavor of the cocoa and makes the batter beautifully silky.
Divide the batter evenly among the cupcake liners, filling each about two-thirds full. Bake for 16 to 18 minutes, or until a toothpick inserted into the center comes out clean. I always set a timer to keep an eye on them!
Once baked, allow the cupcakes to cool completely in the pan for about 10 minutes before transferring them to a wire rack.
While the cupcakes cool, prepare the frosting. Sift together the confectioners sugar and the unsweetened cocoa powder in a bowl to remove any lumps. In a mixing bowl, beat the unsalted butter on medium-high speed for about 2 minutes until creamy.
Reduce the mixer speed to low and gradually add the sifted sugar and cocoa mixture, alternating with the Greek yogurt and Half and Half. Once combined, raise the speed to high and beat until the frosting is light and fluffy, about 1 minute.
Once the cupcakes have cooled, generously frost each cupcake with the rich chocolate frosting. Feel free to add any decorations you desire!
Enjoy your delicious Greek Yogurt Chocolate Fudge Cupcakes! They can be stored in an airtight container at room temperature for up to 4 days.