Step 1: Preheat oven to 350°F. Cook the carrots until very tender.
Step 2: Drain, and transfer to a large mixer bowl.
Step 3: While carrots are still warm, beat in the sugar, and baking powder until smooth.
Step 4: Mix in the flour, eggs, and margarine.
Step 5: Transfer to a 2 quart baking dish.
Step 6: Bake 1 hour, or until top is golden brown.
Step 7: Sprinkle lightly with confectioners’ sugar before serving.