Instructions:
Prepare the choux batter:
- Preheat the oven to 400 F and line two sheet pans with a parchment paper.
- In a medium non-stick pot combine water with salt and bring to a boil.
- Add butter and bring to a boil one more time.
- Add flour and whisk vigorously until no lumps remain and the batter thickens, about 1 minute.
- Remove pot from the heat and let the batter cool for 5 minute.
- Whisk in the first egg and mix with a wooden spoon until the egg is fully incorporated into the batter with no white lumps.
- Continue whisking in the remaining eggs, one at a time
- Using a pastry bag fitted with a large plain tip (I use Wilton #1A), pipe fat lengths of dough (about ¾ – 1 inch thick and 4 inches long) onto the lined baking sheet, leaving 1 inch of space between them.
- Bake for 15 minutes.
- Without opening the oven door, reduce the temperature to 340 F and bake for another 15-20 minutes until eclairs are light golden brown.
- Remove from the oven and cool on the wire rack.
Prepare the pastry cream:
- In a small bowl dissolve a cornstarch in 3-4 tablespoons of milk.
- To a small sauce pan add the remaining milk and bring to a simmer.
- Add 50 grams (1/4 cup) of sugar and stir until sugar dissolves.
- When milk starts to boil, add a dissolved cornstarch and whisk until no lumps remain.
- Remove from the heat and cool until just slightly warm or completely cold.
- In a large bowl beat the butter with the remaining 50 grams (1/4 cup) of sugar and vanilla extract until the mixture turns almost white.
- Combine the whipped butter with the milk and cornstarch mixture. Mix well and set aside.
- In a large bowl and using the electric mixer, beat the heavy whipping cream until soft peaks form.
- Fold whipped cream into the butter and milk cream.
- Using the tip of a small knife, cut 3 small Xs along the top of each pastry.
- Using a small tip (I used Wilton tip #32), pipe the pastry cream into the shells through each opening.
For the chocolate glaze:
- Melt the chocolate chips and heavy whipping cream in a medium saucepan set over a pot with about 1 inch of boiling water.
- Whisk until the mixture is nice and smooth.
- Alternatively, you can heat chocolate and cream in a microwave for about 30 seconds and whisk until smooth.
- Remove from the heat and cool for a few minutes.
- Dip the top of each eclair into the chocolate glaze and set aside to allow the glaze to harden.