Preheat oven to 375F
In a medium bowl combine melted butter, granulated sugar and brown sugar
Add eggs and vanilla extract to the butter and sugar mixture
Add dry ingredients and instant espresso to the wet ingredients and fold to combine
Add chocolate chips and fold until all ingredients are well incorporated
Transfer batter to a lined 8x8 baking dish
Bake at 375F for 22-25 minutes
Cool and enjoy
