Puff Pastry Sausage Rolls - Flaky and Savory Appetizer

Ingredients

• 1 tablespoon olive oil, for sautéing.
• 1 lb ground pork, for the filling.
• 3 cloves garlic, minced, for flavor.
• 1 small onion, minced, for sweetness.
• 1 apple, finely chopped, for a hint of sweetness.
• 1 teaspoon fennel seeds, crushed, for spice.
• 1 teaspoon chopped fresh sage, for earthiness.
• 1 teaspoon chopped fresh thyme, for aroma.
• 1 tablespoon stone-ground mustard, for tang.
• 2 eggs, divided, for binding and brushing.
• 1/2 cup panko breadcrumbs, for texture.
• 1/2 cup grated Parmesan cheese, for richness.
• 1 teaspoon kosher salt, to taste.
• 3/4 teaspoon black pepper, to taste.
• 17 oz puff pastry (2 sheets), for wrapping.