To make the Ganache:
In a saucepan heat the cream over medium heat. Once it comes to a simmer, turn off the heat and add the chocolate. Swirl the pan to make sure all the chocolate is covered, let sit for 3 minutes. Gently whisk together the cream and chocolate until it is smooth, add the corn syrup and stir just until combined. Pour into a shallow bowl and cover with plastic wrap, allow to cool to room temperature.
To make the cream puffs:
Preheat oven to 400 degrees F. Line two cookie sheets with parchment paper. In a saucepan combine the milk, butter, sugar and salt. Bring to a low boil over medium heat. Once the milk mixture comes to a boil, dump all of the flour in and stir with a wooden spoon.
Turn the heat to low and continue to stir until the mixture becomes thick, it will look like mashed potatoes. Cook over low heat for about one minute. Transfer the dough to a stand mixer, fitted with the paddle attachment. Mix on low speed for about 30 seconds. On medium speed, add the eggs, about 2 tablespoons at a time, mixing well after each addition. The dough should still be soft, but will still hold its shape when piped.
Put the dough into an 18-inch pastry bag, fitted with a large (1/2-inch) round tip. Holding the pastry bag straight up and down, hovering about 1/4-inch off the parchment, pipe out about 36 balls of dough, each one 3/4 inch wide and 1/2 inch tall. Try to get them the same size and about 1-inch apart. If there are any points on the top of your dough balls, gently rub them flat with a wet finger.
Bake the cream puffs for about 25 minutes. Remove one of the puffs and break it open, if it is still wet inside they need more time in the oven. You will want to switch the top tray with the bottom tray at this point. Don't switch them before now, or they may collapse. When they are done, the inside will be hollow and the outside crisp and golden brown. Once the cream puffs are cooled completely, poke a small hole in the bottom with a paring knife.
Fit a 12-inch pastry bag with a small (1/4 inch wide) round tip. Fill, about 1/3 full, with some of the raspberry preserves and squeeze a small amount into each of the puff pasties through the small hole in the bottom. In another 12-inch pastry bag with a small (1/4 inch wide) round tip. Fill this one with the room temperature ganache, which should be the consistency of icing when it is fully set up.
Melt the remaining ganache gently over a double boiler, just until it is soft enough to dip the cream puffs and get a shiny glaze. Remove from heat and repeat with the rest of the cream puffs. Set the dipped puffs back on the cookie sheet and place them in the refrigerator until the ganache on top is set. Serve with tea, coffee or a tall glass of milk.