Preheat the oven to 400 degrees. In a mixing bowl, combine the ground beef, breadcrumbs, egg, onion, garlic, salt, and black pepper. Mix until just combined, then shape into 16 small meatballs.
Place the meatballs on a baking sheet and bake for 15 minutes until cooked through.
While the meatballs bake, melt the butter in a large skillet over medium heat. Add the whiskey, brown sugar, and Worcestershire sauce. Stir and simmer for 3 to 4 minutes until the mixture thickens slightly.
Add the baked meatballs to the skillet and toss to coat evenly in the glaze. Cook for 2 more minutes, then remove from heat.
In a separate bowl, stir together the gorgonzola cheese, sour cream, mayonnaise, and chives until smooth. Serve the meatballs with the dip on the side.