Mix together 3 cups of apples, peeled and sliced with 2 tsps of cinnamon; set aside.

Beat together the following ingredients for about 3 minutes:
3 cups flour
3 tsps baking powder
1 tsp salt
1 cup sugar
1 1/2 cup milk
1/2 cup butter or margarine
3 eggs

Pour half of flour mixture into 9"x13" pan, top with half of the apple mixture and repeat.

Mix 1/4 cup pecans and 1/4 cup brown sugar together, sprinkle over the top. Melt 2 Tbsps of butter and drizzle over.

Bake for 50 minutes; cool for 15 minutes.

Mix the following until smooth consistency:
3/4 cup powdered sugar
1 Tbsp softened butter
3/4 tsp vanilla
3 tsps hot water

Drizzle the glaze over the cake.