- 240 g flour
- 3 g baking powder
- 3 g sea salt
Combine flour, baking soda and salt in a bowl.
Chop the walnuts.
- 125 g unsalted butter
- 100 g brown sugar
- 2 eggs
In your bowl of your stand mixer cream butter and brown sugar. Once everything is fluffy add eggs. Keep mixing.
Mash bananas and add to the mixture.
- 125 g sourdough starter
- 30 g honey
- 30 g extra-virgin olive oil
- 4 g vanilla sugar
Once everything is combined add sourdough starter, honey, olive oil and vanilla. Mix on medium high speed.
Slow down the mixer, add flour little by little.
Add chopped walnuts (leave a little bit for the top) and lemon zest and mix.
Add the mixture into a buttered baking pan and sprinkle with walnuts.
Bake 60 min in 180C.
Once done, cool completely before slicing.