01 -
Set the oven temperature to 175°C and grease the baking pan thoroughly.
02 -
In a large bowl, whisk together the all-purpose flour and baking powder until evenly mixed.
03 -
In a separate bowl, mash the ripe bananas. Add softened butter and granulated sugar, mixing to a creamy consistency, then incorporate the eggs one at a time.
04 -
Gradually fold the dry ingredients into the wet banana mixture until just combined, avoiding overmixing; then gently fold in the toasted walnuts.
05 -
Pour the batter into the prepared pan and bake for 30 to 35 minutes, or until a toothpick inserted into the center emerges clean.
06 -
Allow the cake to cool completely before spreading whipped heavy cream evenly over the surface.