Preheat the oven to 350 degrees F. Line a 8x8 inch baking pan with parchment paper and evenly grease with olive oil.
In a large bowl, combine the olive oil and brown sugar with a whisk.
Add egg, yolks, juniper and salt, mixing until blended. Add the hot coffee and mix well.
Sift cocoa powder, flour and baking powder into the wet ingredients. Gently mix, being careful not to over mix or the batter will turn out more cakey, and less fudgy.
Pour the batter into the pan and evenly sprinkle the chocolate chips on top.
Bake for 20 minutes, or until a toothpick comes out clean from the center of the pan.
Cool completely before cutting.