Preheat oven to 356ºF (180ºC) fan-forced.
Prepare a 10-12 cup capacity bundt pan by greasing it with butter and a dusting a light layer of cocoa powder for the butter. Tip: I like to use a tea ball strainer with a handle or a mini sieve to dust the pan.
In a medium-size mixing bowl, add flour, baking powder, both sugars and salt. Whisk until well combined and set aside.
In a separate large mixing bowl, sift in cocoa powder.
Whisk through coffee powder.
Pour in boiling water and whisk until cocoa dissolves, about 30-40 seconds. Let it cool for 10 minutes. If it's still warm, wait 5 more minutes. This prevents eggs from curdling when added.
Pour in olive oil, eggs and vanilla. Whisk for 40 seconds until well combined.
Add half of the flour mixture and whisk until just combined. Add remaining flour and beat until incorporated, ensuring not to over-mix, just until no streaks of flour remain. Batter will be thin.
Pour batter into the prepared bundt pan.
Bake for 35-40 minutes or until a skewer inserted into the middle comes out clean or with only a few moist crumbs.
Remove from oven and allow to cool in the pan for 10 minutes.
Carefully remove the cake from the pan onto a wire rack to cool completely before adding the ganache.