Recipe:

375 grams bread flour

3/4 teaspoon salt

2 teaspoon pepper

5 grams sugar

1 1/2 teaspoon instant dry yeast

100 grams mashed potatoes (cooked mashed potatoes)

30 grams butter (room temperature)

2 tablespoons chopped fresh rosemary

200 grams water

1 egg mixed for egg wash

1. Using a stand mixer, mix the flour, salt, pepper, yeast, sugar, rosemary & water in the stand mixer until the mixture is well incorporated. Add the mashed potatoes and continue to mix. Lastly, add the butter and mix until it is becomes smooth.
2. Put on a flat surface and finish kneading until the dough is soft and supple. 
3. Oil the bottom & sides of a bowl and put the dough inside. Cover with wrap. Let sit in a warm place for about 1 hour or until bread doubles in size.
4. Remove dough from bowl. Cut dough into 2 equal pieces and roll into 2 balls. Place each piece side-by-side in a buttered bread pan. Cover with plastic wrap and let sit for about 1 hour in a warm place. Decorate with several pieces of rosemary and lightly brush with egg wash before baking.
5. Preheat the oven and bake at 200 C. for about 45- 50 minutes. After baking, let cool for about 10 minutes before removing from the pan. Cool completely before slicing.