Mix apple sauce, brown sugar, pecans, raisins, rum and spices and heat.
Pour into a 1 1/2 -quart casserole.
Beat egg whites stiff and fold in lemon extract.
Gradually beat in 1/2 cup sugar until mixture stands in stiff peaks.
Spread over top of apple-sauce mixture in casserole.
Bake in a 325° F oven for 15 to 20 minutes or until meringue is delicately browned.