Hot & Buttery Popcorn Bread (Kopie)

*****
recipe from A Passion for Baking
Oven: 375 Prep time: 3 hours Bake time: 35-45 minutes
Makes 1 large loaf

5 cups of popcorn (about 1/3 cup unpopped kernels or about 1 bag of microwavable)
1 1/4 cup cup warm water (about 110degrees)
3 3/4 tsp rapid-rise yeast
2 TBS sugar
1/4 cup veggie oil
1 TBS butter extract (optional)
2 1/4 tsp salt
5-6 cups bread flour
Topping
1 large egg
2-4 TBS butter
pinch of sugar and salt

Pop you corn, whatever your fancy. Pulverize it in batches in a food processor or mini chopper until you have about 2 1/2 cups of very finely ground popcorn.
In a large bowl, whisk warm water and yeast together and let stand for about 2 or 3 minutes or until you start to see bubbles.
Briskly add sugar, oil, butter extract and salt, blending well.
Add popcorn flour and 3 cups of bread flour, mixing well.
Knead the dough with a dough hook attachment for about 6 to 8 minutes, adding flour as necessary to form a soft, elastic dough. (You could also do this by hand if you want)
Form dough into a large ball, spray with cooking spray, place in a large clean bowl and cover with saran wrap.
Place dough in a warm spot and allow to rise about 60 to 90 minutes or until almost doubled.
Spray loaf pan with cooking spray and set aside.
Once the dough has risen, turn out on a lightly floured surface and gently deflate.
Form into loaf and place into prepared loaf pan.
Whisk egg and pinch of salt and sugar in a small bowl.
Brush loaf with egg wash and loosely cover pan with saran wrap.
Return loaf to warm place and allow to rise again for about 45-60 minutes.
Preheat your oven to 375 and brush you risen dough once more with the egg wash.
Place bread in oven and immediately reduce the temperature of the oven to 350 (this will allow the yeast to get that extra kick and give you a nice fluffy loaf I was later told by MM)
As soon as the bread comes out brush with melted butter.
Allow bread to cool in the pan for about 10 minutes before turning out onto wire rack to cool completely.

http://sweetebakes.blogspot.nl/2011/06/hot-buttery-popcorn-bread.html