Transfer your butter to a microwave safe bowl, and melt for 15-30 seconds. Whisk until the butter is smooth, and set aside.
1/4 (57g) cup salted butter
In another bowl, add your brown sugar and cinnamon and mix with a spoon until well combined. Set this aside.
1/4 (50g) cup granulated white sugar, 1 1/2 tsp cinnamon
For the vanilla glaze add the powdered sugar, milk, vanilla extract, and salt to a small mixing bowl. Whisk slowly until the milk absorbs the sugar and the glaze is smooth but quite thick. This will give the donut hole that bakery style finish. I am very precise on how much milk I use to achieve this consistency, but if you prefer a thinner glaze add milk one teaspoon at a time whisking until your glaze is your desired consistency. Set the glaze aside.
1/2 (60g) cup powdered sugar, 1 (12g) tbsp milk, 1/4 tsp vanilla extract, 1/8 tsp sea salt
Turn your donut holes out onto a cooling rack, and begin to coat them. The amount of cinnamon sugar topping and glaze is enough to coat half of the donut holes to give you both options, but if you prefer one more than the other than simply double the recipe for the topping of your choice.
Cinnamon Sugar Coating: Dip the donut hole in the warm butter, then roll in the cinnamon sugar to coat the entire donut hole. Transfer the donut hole to the cooling rack and allow to cool slightly. Coat another 8 donut holes with the cinnamon sugar.
Vanilla Glaze: Dip the donut hole into the vanilla glaze with a spoon, rolling to coat the entire donut hole. Remove and allow to drain excess glaze, then transfer the donut hole to the cooling rack to allow the glaze to set on the donut hole. Coat another 8 donut holes with the glaze.
If you would like to add a chocolate dipping sauce, simply melt chocolate chips with 1 teaspoon butter or coconut oil at 30 seconds intervals in the microwave in a heat safe bowl and whisk until smooth. Serve on the side of the donuts.
1/2 (120g) cup semi-sweet chocolate chips, 1 tsp salted butter or coconut oil
After donut holes have slightly cooled or set up, they're ready to enjoy with a hot cup of coffee and my personal favorite a little melted chocolate for dipping!
Yields 18 donut holes