Set the Deluxe Air Fryer & Oven to BAKE for 30 minutes and lightly grease the Small Oven Brownie Pan with oil.
Add the melted butter, sugar, eggs, and vanilla to the bowl of the Deluxe Stand Mixer. Set to MIX for 45 seconds.
Add the flour, cocoa powder, and salt. Set to MIX for 45 seconds.
Pour the batter into the wells of the prepared pan and spready evenly. Add the brownies to the oven when prompted; press start. Check the brownies in the last 5 minutes of cooking and bake until a toothpick inserted in the centers of each well comes out clean.
Remove the brownies from the pan and let cool on a cooling rack for 10-20 minutes before serving.