S'mores Eclairs

Directions

1. 1
   Preheat the oven to 425 degrees F.
2. 2
   Sift the cocoa powder and flour together at least 3 times.
3. 3
   Set aside.
4. 4
   Place the water, butter, sugar, and salt in a heavy 2-quart saucepan.
5. 5
   Bring this mixture just to a boil over high heat.
6. 6
   Remove from heat and add the sifted cocoa and flour in all at once.
7. 7
   Stir with a wooden spoon until the dough comes together to form a ball.
8. 8
   Return the pan to medium-high heat and beat constantly until a film develops on the bottom of the pan, about 2 minutes.
9. 9
   Do not let it burn.
10. 10
    Transfer the dough to the bowl of an electric mixer with a paddle attachment.
11. 11
    Add the eggs 1 at a time, beating well after each addition.
12. 12
    Scrape down the side of the bowl and continue to beat the dough for 4 minutes at high speed.
13. 13
    Transfer the dough into a piping bag fitted with a large star tip.
14. 14
    Line a baking sheet with parchment paper and pipe 3 to 4-inch log shapes onto the paper.
15. 15
    Bake for 10 minutes; then reduce the oven temperature to 325 degrees F. Bake for another 15 minutes.
16. 16
    Turn the oven off.
17. 17
    Remove the eclairs from the oven and poke a hole in each one using a skewer or piping nail.
18. 18
    Place the eclairs back in the oven and leave the door ajar for 10 minutes, allowing the eclairs to dry.
19. 19
    Cut the eclairs in 1/2 lengthwise with a serrated knife.
20. 20
    Place the bottom halves of the eclairs on a sheet pan and put 3 marshmallows into each.
21. 21
    Place under the broiler until golden, watching closely.
22. 22
    Remove from oven.
23. 23
    Place tops on and ladle the chocolate sauce over top.
24. 24
    Chocolate Sauce:
25. 25
    10 ounces semisweet chocolate, finely chopped
26. 26
    1 cup heavy cream
27. 27
    Place the chocolate in a stainless-steel bowl.
28. 28
    Pour the heavy cream into a small saucepan over medium-high heat and heat the cream until just before the boiling point.
29. 29
    Pour the cream over the chocolate and let sit for 1 minute.
30. 30
    Whisk until smooth and glossy.