Place the 30 g Valrhona Cocoa Powder with the sugar, baking powder, and flour in a large mixing bowl and mix until just combined.
In a separate bowl, combine all of the wet ingredients, including the 4 g Prova Gourmet Madagascar Bourbon Vanilla Extract and add slowly to the mixer in three additions.
Add in the 100 g Valrhona 60% Dark Chocolate Baking Chips.
Fill small loaf containers with batter, and top with additional Valrhona Chips.
Bake at 325°F (163°C) until a toothpick inserted in the middle comes out clean.
Once at room temperature, dust lightly with confectioner's sugar.