Preheat oven to 425F.
Butter a donut pan containing six donut molds or lightly oil with nonstick spray.
In a small bowl, whisk together gfJules Flour, cocoa, baking soda and salt.
In a large mixing bowl, beat butter, oil and sugar on high speed until light and fluffy, about 2-3 minutes.
Add egg or substitute and mix.
Slowly stir in dry gluten free flour mixture and milk of choice until smooth; do not over-mix.
Spoon the batter into the prepared donut pan, filling only to the rim. Smooth batter with a wet spatula.
Bake for 9 minutes or until a toothpick inserted into the center comes out clean. Do not over-bake. Remove from the oven and allow the donuts to cool in pan on a wire rack for about 5 minutes before lifting out of the pan.
To mix glaze, sift or whisk powdered sugar in a small bowl to remove clumps. Whisk in milk of choice and vanilla. Transfer to a flat bottom bowl.
Dip each donut in the glaze and return to the wire rack with parchment or a pan underneath to keep down the mess!
Add gluten free sprinkles if desired.