Preheat oven to 375 Mix the yeast, a pinch of sugar and 1 cup of warm water in a small bowl, set aside while u measure out dry ingrediants, let get frothy.
Whisk 3 1/2 cups flour, remaining 1/2 cup sugar and salt in a large bowl. Pour the yeast mixture and stir with wooden spoon. Add 1 egg, vegetable oil and 1 cup of warm water, stir until combined. Gradually stir in the remaining 3 1/2 cups flour until the dough starts to come together. Mix in the chocolate chips. Turn dough out onto a floured surface and kneed until smooth, about 5 or 6 minutes. Transfer to a large oiled bowl, cover and let rise in warm place intil doubled in size, 1 hr. 30 minutes...give or take a few minutes. Divie the dough into 3 equal portions. Roll each portion out to 2 inch wide, 16 inch long strands . Lay strands side by side. Lay on Parchment paper. Braid the 3 strands together, criss/cross until all dough is braided and pinch the ends together. Slide the loaf with the parchment paper onto a baking sheet. Beat the remaining egg with 1 tablespoon of water in a small bowl and brush the egg wash all over the loaf. Bake until golden brown, about 30 minutes. Dough will sound hollow....May take a little longer depending on your oven. Enjoy