Preheat oven to 350° Fahrenheit.
Add the cocoa powder, sugar and oil to a mixing bowl. Mix until it's all well-combined.
Add in the eggs and mix again until everything is well-incorporated.
Add the flour blend and salt and mix again until a thick batter is formed.
Refrigerate the dough for at least 3 hours. Since there is so much oil in this batter, it needs to firm up.
When the dough is firmed up, scoop the dough into 1-inch balls. I like to use my medium sized cookie scoop from OXO. Roll the dough balls in the powdered sugar and then place on a parchment paper lined cookie sheet. Bake for about 12 minutes until they are set.
Remove from oven and transfer to a cooling rack.