Meanwhle, whisk eggs in a medium bowl until smooth; whisk in coconut next 3 ingredients, and remaining 1 1/2 cups sugar. Stir together baking powder, salt, and remaining 1/4 cup flour; whisk into egg mixture. Pour over hot crust. Bake at 350 for 25 minutes or until filling is set. Let cool 1 hour on a wire rack. Lift from pan, using foil sides as handles. Remove foil, and cut into bars. Garnish, if desired.
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