Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

Carefully peel each ripe pear and dice them into small, even pieces.

In a mixing bowl, combine the diced pears, shredded cheddar cheese, spicy mustard, cayenne pepper, black pepper, honey, and salt. Stir until evenly mixed.

On a lightly floured surface, roll out the puff pastry dough to about ¼-inch thickness and cut into squares.

Spoon a generous amount of the filling into the center of each pastry square.

Fold the corners of the pastry over the filling to form a triangle and crimp the edges to seal.

Whisk the egg and brush it lightly over the tops of each sealed triangle.

Bake in the preheated oven for 15-20 minutes until golden brown.

Let them cool for a few minutes on a wire rack before serving.

Garnish with freshly chopped parsley or chives, if desired.