Begin by making the Chocolate Syrup:
In a small saucepan, heat the cream and corn syrup until barely simmering. Remove from the heat and stir in the chocolate chips. Stir until they're completely melted and smooth. This can be reheated in the microwave, stirring at ten second intervals until heated through.
Next, make the Chocolate Pancakes:
Sift together the flour, baking powder, salt, sugar, and cocoa powder into a large bowl.
In a second, smaller bowl whisk together the egg, milk, and sour cream. Then, stir this into the flour mixture. Mix just until no flour streaks remain. Stir in the melted butter, and then the chocolate chips.
Heat a non-stick griddle or skillet over medium heat, and melt a tablespoon of butter. Ladle a few tablespoons of batter onto the skillet. When bubbles appear, flip your pancakes. Add more butter, as necessary, and cook the rest of the pancakes.
Top the pancakes with whipped cream, raspberries, and the chocolate syrup.