Flour's Brioche au Chocolat

I love brioche, and I love chocolate, and Flour's recipes are always amazing, so it's hard to go wrong here.  Aaron, Owen and Noah all gave this a 9, and I gave them an 8 because I felt like they were a tiny bit dry, my fault because I cooked them a little too long.

My picture isn't great, but these are some delicious pastries, each one 450 calories.  

The brioche is the same as Flour's Sticky Sticky buns that I made before, and you can find the recipe here for the sticky buns, and the brioche dough I used.  I made the full batch this time, and I made one loaf of brioche bread, then made these with the other half.  

1/2 recipe brioche dough

1-2 c pastry cream

4 oz bittersweet chocolate

1 egg beaten

Roll out the brioche dough into a large rectangle on a lightly floured surface.  Spread the pastry cream all over the dough, then scatter the chocolate over the bottom half.  Fold the top half over the bottom, then cut into 10 (I only got 9) pastries.  Lay on a parchment lined cookie sheet, and allow to rise for two hours in a warm place.  After 2 hours, preheat the oven to 350, and brush the tops of the pastries with the egg.  Bake for 35-45 minutes, until the pastries are golden brown.  Serve after cooling for a few minutes.