Wash and dry peaches and blackberries. You'll want to make sure they have ample time to dry before starting this recipe.
In a mixing bowl, combine honey, brown sugar, cinnamon, lemon juice, and vanilla extract. Stir well. This will create a sugar paste. Roll your premade pie crust flat onto the lined sheet pan
Use a rubber baster brush to coat the crust with the sugar paste. Leave a 1 ½” border. Sprinkle flour onto the pie crust.
Finely slice peaches into ¼” strips. Remove any dark spots from the peaches.
Layer sliced peaches in a circle on the pie crust, being sure to leave the 1 ½” border. Start from the outside and work your way in. Place blackberries around the perimeter of the peaches.
Carefully fold over the 1 ½” border to create a crust. Brush egg wash on the folded crust and gently place sliced almonds on it.
Bake on the middle rack for about 30 minutes. Serve warm with vanilla ice cream, or serve chilled.