Peel and dice the pumpkin flesh and cook in water for approx. 10-15 minutes until soft, drain and mash with a potato masher.
Mix the dry ingredients in a bowl. Make a well and add the butter in flakes. Add the lukewarm pumpkin and use the dough hook with the mixer to work it into a dough for a few minutes. Let stand covered in a warm place for approx. 1 hour.
Knead again thoroughly, shape into a bread and put in a greased small (25 cm) loaf pan.
Whisk the egg with the cream and brush the surface of the bread with it. Cut diagonally as desired. Cover and let rise in a warm place for another 30-45 minutes.
In the meantime, preheat the oven to 200 ° top / bottom heat and place a cup of hot water in the oven. Bake the bread in the middle of the oven for 30 minutes until golden. Possibly cover after 15 minutes.