Preheat your oven to 350°F (175°C).
In a large bowl, combine the ricotta cheese and sugar.
Add the egg, orange zest, and vanilla extract to the ricotta mixture.
In another bowl, whisk together the baking powder, salt, and flour.
Gradually add the dry ingredients to the wet ingredients and mix until combined.
Scoop tablespoon-sized portions of dough onto a baking sheet lined with parchment paper.
Bake for 12-15 minutes or until the edges are lightly golden.
While the cookies bake, prepare the glaze by mixing powdered sugar and orange juice.
Once the cookies are cool, drizzle the glaze over them.