Preheat oven to 400˚F. Thaw pastry 20 minutes at room temp, or until you can unfold the pastry. Cut into 9 equal sized squares and place on a parchment lined baking sheet.

Beat 1 egg in a small bowl and set aside.

Slice peaches into 1/3" thick slices and place in a medium mixing bowl. Sprinkle with sugar, flour, cinnamon, vanilla and mix together until peaches are coated.

Layer 2-3 peach slices over the center of each pastry square.

Brush pastry edges generously with beaten egg. Sprinkle with sliced almonds.

Bake on the center oven rack at 400˚F for 17-19 min or until puffed and golden at the edges.

While pastry cools, make the glaze: in a measuring cup, stir together powdered sugar, vanilla and milk.

Once the pastries are cool, pour the icing over them.