Grate the apple coarsely and mash the bananas. You can also finely chop the raisins if you are not too fond of raisins in bread. This way, you still get the good taste from the raisins without the experience of large, soft raisins.
Put all the ingredients (except wheat flour and egg) in a bowl and mix them together. I used my mixer.
Add the wheat flour gradually until the dough comes together.
Let the dough rise in a warm place for 30 - 60 minutes.
Divide the risen dough into 8 pieces and shape them into buns.
Let the buns rise again for 30 minutes.
Brush the buns with egg. You can also use water or coffee instead for brushing.
Bake the buns for 15 minutes at 200 degrees Celsius (392 degrees Fahrenheit) conventional heat.