1: Set the oven to 400° F.
2: Take 3 peaches and slice them.
3: Mix peaches with 1 tbsp of flour, 2 tbsp of sugar, and 1 tsp of vanilla. Set aside.
4: Make the brown butter crumble by mixing 3 tbsp each of flour, refrigerated butter, and brown sugar. Add 1/2 tsp of cinnamon, a pinch of salt, and a pinch of nutmeg, and mix until it forms a crumble.
5: Roll out the store-bought puff pastry to room temperature.
6: Place puff pastry on a baking sheet lined with parchment paper.
7: Spoon the peach mixture over the pastry.
8: Pinch the puff pastry from the sides and sprinkle the brown sugar butter crumble over it.
9: Brush the corners of the puff pastry with a beaten egg and sprinkle some sugar over the edges for a light crunch.
10: Bake for 18 minutes and broil for 3 minutes.
11: Enjoy with vanilla ice cream.
