Ingredients:
1 cup matzo meal
4 large eggs
2 tablespoons schmaltz (rendered seasoned chicken fat, sold at butcher shops) at room temperature
1 tablespoon kosher salt
½ teaspoon baking powder
¼ cup seltzer
For matzo balls: In a large mixing bowl, combine matzo meal, eggs, schmaltz, kosher salt and baking powder. Mix well. Add seltzer and mix again. Cover and refrigerate for 1 hour.
Fill a large pot with water and bring to a simmer. With wet hands, roll out 1-ounce balls (about the size of a walnut). Add balls to water and simmer until tender, light and fluffy in the center, 45 to 60 minutes. (To test centers, insert a toothpick, which should slide easily all the way through.) Drain, allow to cool, and transfer to a flat covered container. Refrigerate until needed.
To serve, place broth over medium-low heat. Add matzo balls, blanched carrot slices and chopped dill. Season with salt and pepper to taste. Simmer until matzo balls are thoroughly heated, and serve.