Preheat the oven to 350F (177C). Line a 8x8 (20cm) pan with parchment paper along the bottom and two sides, leaving a 1-2" overhang. Set aside.
Place a small or medium pot filled with about 1" of water on the stove. Heat over medium heat to a gentle boil. Place a heat safe bowl on top of the pot, making sure the bottom of the bowl doesn't touch the water.
While the water heats to a boil, whisk together the flour, dutch process cocoa powder, ground espresso powder, baking powder and salt.
Once the water has reached a boil, place the chopped chocolate and butter into the heat safe bowl. Over medium high heat, allow the chocolate and butter begin to melt. Once each has started melting, stir to ensure even melting.
When the chocolate and butter mixture have fully melted, remove from the heat and pour in the sugar. Stir well to fully combine the ingredients.
Whisk in each egg until well combined.
Whisk in the red wine. The batter should be smooth and glossy.
With a flexible spatula or spoon, stir in the dry ingredients until JUST combined.
Pour in the brownie batter into the prepared pan. Smooth the batter into the corners and across the top.
Bake the brownies at 350F (177C) for 25-35 minutes. The edges should be set and slightly pulling away from the edges of the pan. The center will be barely set.
Cool brownies in the pan on a cooling rack until fully cooled.
Generously dust the completely cooled brownies with more dutch process cocoa powder.