Preheat your oven to 375°F (190°C) and spray your donut pan with cooking spray.

In a large mixing bowl, whisk together flour, baking powder, baking soda, sea salt, and rainbow sprinkles. Set aside.

In a separate bowl, mix melted butter, eggs (or applesauce), sugar, and almond milk until smooth.

Fold the dry ingredients into the wet mixture until just combined; avoid overmixing.

Transfer batter to a zip-top bag, cut a corner, and pipe into the donut pan.

Bake for 10 minutes, checking doneness by pressing lightly or using a toothpick.

Cool donuts in the pan for a few minutes before transferring to a wire rack.

In a small bowl, combine powdered sugar, milk, and almond extract for the glaze.

Dip cooled donuts into the glaze and sprinkle with additional rainbow sprinkles.