Preheat oven to 350F, spray a regular 12 hole muffin tin with some non stick spray *do not use paper liners
In a bowl whisk the eggs and then add the brown sugar. Mix in the applesauce, milk and vanilla.
Stir in the oats, espresso, cocoa powder and baking powder, then fold in the chocolate chips.
Divide batter over the 12 muffin cups, batter will not be thick *as seen in the picture
Bake in the oven for approximately 20 minutes.
Let cool 5 minutes then transfer to a cooling rack. Muffins will freeze well.