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

In a mixing bowl, blend together softened cream cheese, shredded cheddar cheese, sliced jalapenos, and garlic powder until smooth.

Roll out thawed puff pastry on a floured surface to about 1/4 inch thick and cut into 2-inch wide strips.

Place a spoonful of filling on one half of each pastry strip, fold over, and twist each strip tightly to seal the filling.

Whisk an egg in a bowl and brush the tops of pastries with the egg wash.

Bake for 15 to 20 minutes until golden brown and flaky. Keep an eye on them during the last few minutes.

Let cool slightly and serve warm with your favorite dipping sauces.