Mix all the dry ingredients in a bowl: flour, baking powder, salt, and the ground walnuts.
In a seperate bowl, mix the wet ingredients: chia seeds, milk and oil and add it to the dry mixture.
Make the date puree by blending 6 dates with 4. tablespoons of water. Add the puree to the mixture.
Then fold in the chopped walnuts and prunes.
Line your rectangular loaf tin and pour in the mixture.
If you decide to add the Prune-Jam-Swirl only pour half of the dough into the tin, add the Prune Jam and add the remaining dough. Then take a fork and swirling through the dough carefully.
Bake at 180 degrees Celsius for 45 minutes.