Line a 9" x 5" loaf pan with parchment paper.
Transfer the dough to a lightly floured surface, punch down, divide into 2 portions, cover one to prevent it drying out while working with the other. Roll into approximately about an 12 - 18 rectangle.
Spread half of the chocolate mixture over dough, leaving about 1/2 inch border along one short side. Optionally, you can sprinkle about 1/2 cup of chocolate chips over the melted chocolate spread.
Starting with the filling covered short end, steadily and evenly roll it up, sealing the edge.
Using a sharp knife, cut dough in half, lengthwise. Turn dough cut side up and place beside each other.
Starting in the middle, twist dough keeping the cut side up and seal/pinch dough to seal at end. Repeat from middle to end for other side.
Very carefully transfer dough to the prepared, parchment lined loaf pan.
Cover loosely and let rise, about 1 - 1 1/2 hours, or until the dough has risen above the loaf pan.
Preheat oven to 350°F. Uncover Babka dough, bake for 45 - 55 minutes. Loosely cover Babka during the last 20 minutes with foil, to prevent over browning. Babka should be golden brown.
In a small saucepan, bring the water and sugar to a boil, stirring until sugar has dissolved. Drizzle half of sugar glaze over each Babka while the bread is still warm and in pans.
Allow to cool in pan for 10 minutes, remove and peel away the parchment, transfer to a cooling rack to completely cool.