Pre-heat oven to 350°F, 177°C or gas mark 4. Grease the bundt pan and set aside.
In a mixing bowl whisk together the flour, baking powder and salt until evenly combined.
In the bowl of a stand mixer with paddle attachment, on medium high speed, beat the eggs, egg yolk, and sugar until smooth and has lightened in color. Add melted butter, ricotta, milk and vanilla waiting a minute between each addition.
Reduce the speed to low and add the dry ingredients mixing to just combine.
Pour the batter into the bundt pan and bake until golden brown or about 50-55 minutes. Cool in the pan for 15 minutes before turning over onto a cooling rack. Allow to cool completely.
While the cake is cooling mix the powder sugar and orange juice adding one tablespoon at a time to the sugar to make the glaze and spoon or pour over the cooled cake.