Preheat oven to 350º. Spray 2 donut pans with cooking spray
Using a mixer, beat the eggs in a mixing bowl until blended. Add butter, vanilla and sugar and mix until smooth.
Add to your egg mixture, flour, salt and baking powder , combine until all ingredients are fully mixed. Add milk and stir until smooth. Stir in rainbow sprinkles.
Add batter into prepared donut pans. Bake for 12-15 minutes or until toothpick comes out clean. Let cool and then remove donuts and allow them to fully cool .
While donuts are cooling, mix glaze by combining powdered sugar, vanilla and milk together and whisk until smooth. Add food coloring if using. When donuts are fully cooled, dip in glaze and top with rainbow sprinkles.
Enjoy!