Cream butter; gradually add sugar, beating well at medium speed of electric mixer. Add egg; beat until blended.
Combine flour, salt, and cinnamon; mix well. Add to creamed mixture; beat on low speed until smooth. Stir in water and vanilla. Fold in apples and pecans; spoon into a greased and floured 9-inch pie plate.
Bake at 350F for 45 minutes, or until a wooden toothpick inserted in center comes out clean. Serve warm or cold with Rum Butter Sauce and whipped cream.
RUM BUTTER SAUCE
Yields 1 1/4 cups
1/2 cup brown sugar, firmly packed
1/4 cup softened butter or margarine
1/2 cup sugar
1/2 cup whipping cream
1 tablespoon rum
Combine first 4 ingredients into a small saucepan; mix well. Bring to a