Preheat your oven to 375º Fahrenheit and grease or line muffin tins with paper liners.
In a small bowl, whisk together the flour, cocoa powder, espresso powder, baking soda, baking powder, and salt. Set aside.
In a large bowl beat the eggs and sugar until pale and thick.
Beat in the oil until incorporated and next beat in the yogurt and peppermint extract until fully combined.
Fold in the dry ingredients until just combined. Try not to over mix the batter. Be gentle!
Fold in chocolate and Andes mints.
Divide the batter between 24 muffin cups.
Bake for 10 minutes then drop the heat down to 350º F and bake for an additional 5-10 minutes or until an inserted toothpick comes out clean.
Store in an airtight container at room temperature.
Notes
The calories shown are based on the recipe making 24 muffins, with 1 serving being 1 muffin. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**