Preheat oven to 375 degrees. For the filling, slice apples into thin rings, then cut rings into quarters. Combine pineapple preserves and flour in mixing bowl. Add apples, tossing to coat evenly. Pour into bottom of a 9-inch pie plate or similar shallow baking dish. For crumb topping, combine coconut, oats, brown sugar and flour in a mixing bowl. Microwave butter on high for 1 minute and add to chopped almonds. Add butter and almonds to topping ingredients; mix well. Sprinkle topping evenly over apple mixture. Bake 30-35 minutes or until apples are tender and topping is golden brown. Cool slightly. Serve warm with ice cream, if desired.
Heat oven to 375° F. Lightly butter a 2-quart casserole or baking dish. Stir together bread crumbs and butter; set aside.
Combine apples, brown sugar, lemon juice, ginger, and cinnamon, mixing until well blended. To assemble brown betty, spread 1 cup of buttered bread crumbs in bottom of casserole; top with one third of apple mixture. Sprinkle 1 tablespoon sherry over apple layer, if desired. Spread another cup bread crumbs and top with half of remaining apples and another tablespoon sherry. Make third layer of one cup of bread crumbs and top with remaining apples and sherry. Spread remaining bread crumbs on top of apples.
Cover with foil and bake 30 minutes; uncover and bake 30 minutes longer. Cool until warm and serve with whipped cream, if desired.