Heat oven to 350°F. Lightly grease 2 (6-cavity) donut pans with nonstick spray.
In a microwave, or on the stove, melt butter in a small bowl. Add oil to bring the melted butter to room temperature. Set aside.
In a large bowl, whisk together all purpose, flour, baking powder, cinnamon, cardamom, nutmeg, and kosher salt. Set aside.
In a medium bowl, or large measuring cup, combine two eggs, brown sugar, milk, apple juice or water, spice packets, and vanilla extract.
Pour the wet ingredients into the dry ingredients and begin mixing. When halfway through, begin drizzling in your melted butter and oil, mixing just until the last of the dry ingredients disappear.
Let the batter rest for 15 minutes, if you have time, to allow the flour to fully hydrate.
Transfer batter into a disposable piping bag or a large zip top bag.
Cut a ½ inch opening cut from one corner of your bag and fill each well of your prepared donut pan ⅔ full.
Bake until evenly golden brown and a toothpick inserted into the center of the thickest portion comes out clean, about 10 to 12 minutes.
Remove them from the pans and place on a wire rack.
Melt your butter and combine your topping ingredients in a medium bowl.
Once cool enough to handle, brush or dunk both sides of each donut in the melted butter, then roll in the cinnamon spice topping.
If you have enough batter left, allow one of the donut pans to cool, re-spray with nonstick spray, Phil, and bake.