Preheat oven to 350F. Grease 1-2 donut pans with cooking spray (you need 9 molds).
In a medium-sized bowl, whisk together dry ingredients: flour, sugar, baking powder, cinnamon, and salt.
In a smaller bowl, whisk together wet ingredients: almond milk, egg, yogurt, and vanilla.
Whisk wet ingredients into dry ingredients until fully combined.
Divide batter between 9 donut molds, about 2 tbsp for each mold.
In a small bowl, combine streussel ingredients, pinching the butter into the dry ingredients with your fingers, until everything is combined and a little crumbly.
Divide topping among the 9 donuts.
Bake for 7-12 minutes, or until a toothpick inserted comes out clean.
Remove from oven and allow to cool for 2 minutes, then place on a cooling rack for 5 more minutes.
Whisk together glaze ingredients. Drizzle carefully on top of the cooled donuts, about ½ tsp for each.
