Step 1Heat the oven to 350 degrees. Lightly butter an 8-inch-square glass baking dish.
Step 2Cook the corn in the butter in a skillet until tender, 5 minutes.
Step 3Combine the flour, sugar, baking powder and salt in a large bowl. Make a well in the center. Combine the egg substitute and milk and pour into the well. Stir just until the dry ingredients are moistened and blended in. Stir in the corn, then pour the mixture into the dish. Set the dish in a larger pan of warm water. Bake until set, stirring halfway through, about 40 minutes.
Step 4Remove the pudding from the oven. Heat the broiler. Lightly spray the top of the pudding with cooking spray. Place the pudding under a broiler just until the top is golden brown, about 5 minutes. Sprinkle the pudding with a little nutmeg.