Toss apples in a large bowl with cinnamon, allspice and nutmeg. Place in a greased slow cooker.
Combine milk, softened butter, Splenda, eggs, vanilla, and 1/2 cup of the baking mix. Spoon over the apples. Combine 1 cup baking mix and the brown sugar. Cut the cold butter into the mixture until crumbly. Sprinkle over the apples. Cover and cook on low 6 hours.
252 calories, 64 calories from fat, 25 g sugar, 87 mg cholesterol, 265mg sodium