1: Preheat the oven according to the recipe instructions.
2: Whisk together the eggs, non-fat milk, vanilla extract, and neutral oil until smooth.
3: In a separate bowl, mix the all-purpose flour, Dutch process cocoa powder, granulated sugar, and kosher salt.
4: Gradually combine the wet and dry ingredients until just mixed.
5: Fill the prepared popover pans with the batter.
6: Bake in the preheated oven for the suggested time until puffed and set.