½stick(¼ cup) salted buttersoftened to room temperature
For the frosting:
Preheat oven to 350f degrees. Spray a donut pan with nonstick cooking spray. In a large bowl, stir together flour, baking soda, both sugars, cinnamon and ginger. Beat in butter, egg, milk, and molasses until evenly blended.
Spoon batter into a zip top bag, and cut off one bottom corner. Pipe batter into each donut mold, up to level with the pan.
Bake for 15-20 minutes, then set aside to cool.
Once donuts are cooled, whisk together milk, powdered sugar, in a wide bowl. Take a cooled donut and dip one side into the prepared frosting, then lift up and place on a cooling rack. Add sprinkles.
Cook's Notes: When making the frosting, you want it stiff instead of runny, so keep adding powdered sugar until it is the right texture. Also, when dipping your donuts, wiggle them around a little to get the frosting spread completely. Lift up quickly.