Skip your morning cafe run and that trip to the bakery. This rich, fudgy, chocolatey treat will remind you of the tastiest mocha latte you've ever had!
In a large bowl, whisk together melted butter, brown sugar, sugar, and eggs. In a separate bowl, whisk together espresso powder, cocoa powder, kosher salt, flour, and baking powder.
Add half of the flour mixture to the wet ingredients and then add ¼ cup of milk. Mix together until fully incorporated and then stir in the remainder of the flour and add the rest of the milk.