Preheat oven to 350°F (175°C).

Mash bananas in a large bowl.

Add beaten eggs, sugar, soda, sifted flour, and salt to the mashed bananas.

Mix well until all ingredients are fully incorporated.

Stir in melted margarine and chopped nuts (if using).

Pour batter into a greased and floured 12-inch Dutch oven or loaf pan.

Bake for 50 minutes, or until a wooden skewer inserted into the center comes out clean.

If using a Dutch oven, bake with 10 coals on top and 8 on the bottom.

Let cool slightly before slicing and serving.