Cream Puffs with Lemon Mousse & Blueberry Sauce

Ingredients
For the cream Puffs:
1 cup water
4 ounces (1 stick) unsalted butter
½ tsp. granulated sugar
1 cup all-purpose flour
5 large eggs, plus one large egg lightly been 1 tablespoon water, for egg wash
Coarse sanding sugar, or sprinkling
For The Blueberry Sauce:
2 cups (1 pint) SVO blueberries
½ cup water
¼ cup granulated sugar
1 tsp finely grated lemon zest
½ teaspoon coarse salt
For The Lemon Mousse:
¾ cup lemon curd (recipe follows)
½ cup heavy cream, whipped

1. Make the cream puffs: pre-oven to 400°. Combine water, butter, granulated sugar, and salt in a medium saucepan. Bring to boil, and remove from heat. Stir flour until combined, and return to medium heat. (this mixture is called panade.)

2. Dry the panade by stirring constantly for 4 minutes. It is ready when it pulls away from the sides and film forms on the bottom of the pan.

3. Transfer to bowl of an electric mixer fitted with the paddle attachment, and mix on low until slightly cooled, about 2 minutes. On medium speed, add 4 eggs, one at a time, incorporating each completely before adding the next. Lightly beat fifth egg, and add a little at a time until batter is smooth and shiny. Test by touching it with your finger and lifting to form a string. If a string does not form, the batter needs more eggs. If you’ve added all the eggs and the batter still doesn’t form a string, add water, 1 teaspoon at a time, until it does.

4. Using a pastry bag fitted with a plain ½-inch round tip, pipe ten 2 ½  inch rounds of batter onto parchment lined baking sheets. Brush with egg wash, and sprinkle with sanding sugar. Bake for 15 minutes. Reduce temperature to 350*, and bake until puffed and golden and centers are dry, about 35 minutes more. Let cool on wire rack.

5. Make the blueberry sauce: Bring 1 cup blueberries, the water, granulated sugar, lemon zest, and salt to a boil in a small saucepan. Reduce heat, and simmer until most of the berries have burst, about 5 minutes. Remove from heat. Add remaining cup blueberries, and crush lightly.

6. Make the lemon mousse: Lightly whisk lemon curd, and fold on whipped cream using a rubber spatula. Halve each cream puff, and fill bottoms with lemon-mousse. Spoon on Blueberry sauce replace tops and serve.

Lemon Curd
Ingredients
 1 large egg, plus 3 large egg yolks
½ cup sugar
1 ½ teaspoons finely grated lemon zest
¼ cup plus 2 tablespoons fresh lemon juice (from 2 Lemons)
Pinch of Salt
2 ounces (4 tablespoons) unsalted butter, cut into pieces.
Whisk together egg, yolks sugar, lemon zest and juice, and salt. Bring to a simmer in a medium saucepan over medium heat, whisking constantly. Cook until mixture is thickened, 4 to 5 minutes. Strain through a fine sieve into a bowl. Whisk in butter. Press plastic wrap directly onto surface of lemon curd, and refrigerate until cold, at least 1 hour or up to overnight.