Fill your donut pan about 3/4 full with your donut batter. Bake in your preheated oven for 10 - 12 minutes. Allow to cool in the donut pan for at least 8 minutes and then carefully transfer to a wire cooling rack to cool completley.
Prepare your glaze by mixing all of your ingredients together, except for the crushed oreos, adding 1 tbsp of milk at a time until you have your desired consistency.
Dip the tops of your cooled donuts into your glaze, and sprinkle with your crushed oreos. Place donut back on your cooling rack to allow the icing to set. Once set, enjoy!