Yellow cake with Nutella (Ciambellone soffice con Nutella)

Ingredients (12)

• 2 large eggs (room temperature)
• 1 large yolk (room temperature)
• 1 cup sugar
• 1/2 cup milk (room temperature)
• 1/2 cup vegetable oil
• 1 teaspoon vanilla
• 2 cups pastry/cake flour*
• 1 1/2 teaspoons baking powder
• 1 pinch salt
• EXTRAS:
• 1/2-3/4 cup Nutella
• powdered sugar for dusting