The night before, place raisins in a cup and add rum until just covered. Let soak overnight and into the next day until raisins plump up. Preheat oven to 350°F. Peel and cut up apples into small pieces, place in bowl and stir in raisins and walnuts. In a separate bowl combine sugar, flour, and spices. Stir dry ingredients into fruit mixture and mix well. Pour filling into small greased baking dish and place in oven for 20 minutes or until apples start to soften. While apple filling is cooking, roll out dough and place in bottom of pie plate.
Increase oven temp to 400°F. Spread partially cooked apple filling evenly across bottom pie crust and put back in oven to cook for another 20 minutes. Make custard while it's baking. To make the custard: Add sugar and salt to lightly beaten eggs; add milk, vanilla and rum; mix to combine thoroughly.
TIP: Before pouring the custard onto the apple filling, gently smooth the cooked filling with the greased bottom of a measuring cup so that the filling is as smooth and flat as possible. Pour the custard on top carefully so as not to dislodge any apple pieces. Sprinkle generously with nutmeg. Bake at 400° for 35 to 45 minutes, or until knife inserted in center comes out clean. Cool on rack. |