Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a mixing bowl, combine softened cream cheese, shredded cheddar, sliced jalapenos, and garlic powder until smooth and creamy.
On a lightly floured surface, roll out puff pastry to ¼ inch thickness and cut into strips approximately 2 inches wide.
Place a spoonful of filling on one half of each pastry strip, fold over, seal edges, then twist strips into spiral shapes.
Arrange twists on the baking sheet and brush with beaten egg for a golden finish.
Bake for 15-20 minutes until puffed and golden brown.
