An incredible combination of flavors, these Apple Peanut Butter Tarts have it all. Puff pastry encases peanut butter, topped with diced apples, a dab of apple butter and peanuts. Adapted from Bon Appetite - Apple and Nut-Butter Puff Pastry Tarts.
Peel, core and dice apple in 1/4 “ pieces. In a small bowl toss apple with lemon juice, sugar, flour and cinnamon. Set aside.
Roll out puff pastry on a lightly floured surface into a 12” square. Cut into thirds and each strip into thirds again for 9 squares.
Place a teaspoon of peanut butter in the center of each pastry square, then tablespoon of apples and then 1 teaspoon of apple butter over top. Top with peanuts and dot with butter. Place each pastry square into a well greased muffin pan.
Beat egg and 1 tsp. water in a small bowl and brush pastry edges with egg wash. Let chill in freezer 10 minutes.
Bake tarts until puff pastry is golden, 15 minutes. Reduce oven temperature to 350°F and continue to bake until pastry is deep golden brown and apples are tender, another 5 minutes. Serve dusted with powdered sugar.