Easy Apple Walnut Pastry with Buttermilk Sauce

Ingredients:
Puff pastry sheets (found in frozen section at most grocery stores)
1 egg
3 T. butter
3 apples peeled and sliced
1/4 cup walnuts(I left mine whole for the nut haters to pick out)
approx. 1/2 tsp. cinnamon
2 T. sugar
For the Sauce:
1/2 cup butter
1 cup sugar
1/2 cup buttermilk
2 T. corn syrup
1 tsp. vanilla

Direction:
Step 1: Thaw half a package of puff pastry on the counter about 50 min. Most puff pastry comes with 2 packages or two pastries in the one package  When you can unfold the pastry sprinkle some flour on the counter and roll the pastry to a round 9 X 13. With a pizza cutter or a sharp knife cut 2.5 inches off all the sides and set aside.
Step 2: Put puff pastry on a cookie sheet lined with parchment paper or silicone mat. Wet finger tips with water and wet around the edge of pastry where you will then put back what you cut off to form a rim so the apples will not fall off when put on the pastry. After you wet the edges of the pastry add the strips you cut off pressing slightly to seal them on before baking.
Step 3: Beat the egg in small bowl and with a pastry brush brush the whole pastry. Prick the pastry in the middle with a fork and bake in a 375 F. oven for about 25 min. or until the pastry is golden brown. When the pastry is done let cool completely and if assembling another day put in a large ziplock type bag and store at room temperature until ready to use.
Step 4: Peel, core and slice apples.
Step 5: In a medium size skillet on medium high heat melt 3 T. butter and saute apples, sprinkle with cinnamon and sugar while stirring and add the walnuts close to the end of the cook time. Depending on the size you cut your apples will depend on the the amount of time you will cook them. I cooked mine until I could easily cut with a fork. When the apples are done set aside while you prepare the sauce. Keep apple warm if you will be serving after your sauce is finished, if not then let apples cool completely and refrigerate until ready to use.
Step 6: In a medium size sauce pan put put all ingredients of the sauce in except the vanilla. Stir while cooking on medium high and when it boils let it boil for about 3 minutes, then turn off. Stir in the vanilla and let cool. The sauce will thicken when it cools. Serve sauce while warm, if it has cooled completely then re-heat in the microwave.
If you want to make this dessert all at once great, but like I said above you can make everything ahead then store. I reheated the pastry in a warm oven until it warmed through, then gently reheated the apples on stove top until heated through and then reheated the sauce as well. Pour the apples and nuts on the warm pastry puff, arranging the apple how you like, then pour some sauce over the top. Cut into squares.
Optional:  Serve with whipped cream or ice-cream.
Serves:  6 small servings