Heat a large skillet over medium high heat. Add the butter, apples, and 2 teaspoons of the lemon juice and cook until they’ve just started to soften, about 5 minutes. Keep cooking but add in the sugars and Apple Cinnamon Blend. Cook the filling down until almost caramelized, about 5 more minutes. Remove from the heat to cool completely before building the hand pies.
Roll out the dough and cut each round into 4 rectangles, about 3 by 5 inches. You may need to trim the rounded top and bottom of the pie round to give you straight edges to work with. Fill 4 of the rectangles with about ⅓ cup of the filling. Brush the edges of the pie dough with water, top with another rectangle and press to seal. Use a fork to press the edges together further.
Heat your air fryer to 380 degrees F. Cook the hand pies directly in the air fryer for 6 to 8 minutes until golden brown. Remove from the air fryer and cool for 5 minutes before icing.
In a small bowl, whisk together the powdered sugar and remaining 2 teaspoons lemon juice until a thin icing forms. Brush the still warm hand pies with the icing. Let the icing set for 2 minutes before enjoying.