1. Preheat the oven to 160 °C.2. Grease a cake mold and line with parchment paper.3. In a mixer, cream the butter and sugar at low speed until light and fluffy. Beat in the eggs, flour, and cinnamon until smooth. Remove the bowl and add the figs and bananas to the mixture.4. Pour the mixture into the mold and bake for 90 minutes or until risen and a skewer inserted into the center comes out clean.5. Remove from the oven and unmold onto a rack to cool.