Nutella roll

1 1/2 cup Flour (maida)
1/2 cup warm milk
3/4 tbsp yeast (1/2 tbsp if using instant yeast)
1 tsp salt
1 tbsp sugar
1 tbsp + 1 tsp oil
4 tbsp or more Nutella
2 tbsp Butter , softened
2 Bananas, thinly sliced
1/2 cup Walnuts , toasted and roughly chopped
Prepare nutella spread :-In a small bowl mix nutella and butter and mix well, keep aside.
Prepare dough :- In a small bowl pour in 1/4 cup lukewarm milk, sugar and yeast, mix till yeast dissolves. Keep this aside for few minutes till the mixture looks frothy.
 Now in a large bowl mix flour, salt, yeast mixture and remaining milk and form a sticky dough. Oil your fingertips and knead the dough until it springs back when you press with your fingers, 6 to 7 minutes.Cover the bowl with cling wrap and allow it to double (keep in a warm area). This will take 45 minutes to 1 hour.
Once the dough doubles, punch the dough to remove the air and knead again for few minutes.
Prepare a baking dish, grease with oil and keep aside. 
 Divide the dough into 2 equal parts.Place one portion dough on a flat surface. Use little flour if the dough is very sticky.Roll the dough into a rectangle with 1/2" thickness.
Spread evenly 1/2 of the nutella mixture on the rolled out dough.Place half of the sliced bananas and half of the chopped walnuts on the nutella spread.Roll from one end.Cut the roll into halves.
Then cut each half into halves to get 4 rolls.Repeat the same with the other portion of dough.
Place the rolls in a greased dish with cut side up and brush the top with milk.
Allow the rolls to rise for about 20 minutes.
Place in a preheated oven for 25 to 30 minutes at 180 degree C,or till the top looks golden brown.
Serve warm