Try this with your mature sourdough starter. (Note: If your starter is not mature yet, you can still make this. Double the starter and baking soda and decrease the water half.)

1 cup activated starter (this means starter that has been fed within the past 2 hours)

1 cup water

1/2 cup brown sugar

1/4 cup oil

3 mashed bananas

Mix all these wet ingredients. Then add….

2 tbls cocoa powder

3/4 tsp. salt

1 tsp baking soda

Handful of chocolate chips

Add flour until the dough resembles a stiff buttercream frosting.

Pour into an oiled or buttered casserole. Let it rise, covered, in a warm place until it reaches the top of the pan, or about 2 hours.

Remove the cover and bake at 400 degrees for 30 minutes, or until a toothpick comes out clean.

Poured into casserole. Ready to rise.

Risen for two hours. Ready for the oven.