Preheat the oven to 350 degrees.

Place an 8 inch round Silpat in the bottom of an 8 inch cake pan. Set aside.

In a medium bowl combine the flour, baking powder, and salt. Mix well.

In a large bowl combine the yogurt and sugar. Add in the eggs and mix until well combined.

Add the butter to yogurt mixture and use a mixer on medium speed to beat until smooth.

Add in the vanilla and scrape the inside of the vanilla bean into the yogurt mixture. Mix until combined.

Stir in the lemon juice.

Add the flour mixture to the yogurt mixture and mix until just combined.

Pour into the prepared pan and bake for 30-35 minutes or until the cake is baked all the way through. Remove from oven and cool 15 minutes. Remove from pan and cool completely on a wire rack.

To make the glaze whisk together the powdered sugar and lemon juice. Drizzle over top of the cooled cake.

Quickly sprinkle with the sanding sugar and pastel sprinkles.