• Begin by preheating your oven to a temperature of 350 degrees Fahrenheit, and then prepare a 9x13-inch baking pan by greasing it with some cooking spray.
• In a mixing bowl that is sufficiently large, cream the butter and sugar together until they are light and smooth.
• Proceed to add in the molasses and egg, and mix the ingredients well. In a separate bowl, combine the dry ingredients, which should include flour, baking soda, cinnamon, ginger, cloves, and salt.
• Add the dry ingredients to the wet mixture, and then mix them together until they are properly combined. Slowly pour in some hot water while continuing to stir the mixture until it becomes smooth. Note that the batter will be thin.
• Take the prepared pan and pour the batter into it, then bake it in the preheated oven for around 20 to 35 minutes. Keep an eye on it until a toothpick inserted in the center of the cake comes out clean.
• Once ready, serve the cake while still warm, and top it with some fresh banana slices, whipped cream, and vanilla cream sauce. Enjoy your delicious dessert!

For the Vanilla Cream Sauce:

• Combine sugar, butter, and cream in a medium saucepan and place it over medium heat. Stir occasionally until the butter has completely melted.
• Once everything has melted, raise the heat and bring the mixture to a boil. Keep stirring frequently and let it boil for 3-5 minutes. After that, remove the pan from heat and add vanilla extract.
• Wait for a few minutes and allow the mixture to cool down before serving it as a topping over a cake.