In a medium bowl, whisk eggs and add salt, sugar, nutmeg, cinnamon, and baking powder.

Add vanilla and flour and whisk until well-blended.

Gently fold in rice.

Cover batter and let stand 20 minutes.

Heat oven to 250°F.

In a deep saucepan, heat oil to 360°F.

Drop rounded Tablespoons of batter into oil and fry until golden brown, turning once. Drain on paper towels.

Keep calas warm in the oven. Sprinkle with confectioners sugar while still warm and once again before serving.