How to Make It
Combine milk, yeast, and 1/2 teaspoon granulated sugar in a large bowl; stir with a whisk. Let stand 5 minutes.
Add remaining granulated sugar, 1 tablespoon oil, vanilla, rind, salt, nutmeg, and eggs; beat with a mixer at low speed until well combined. Add flour; beat at low speed 5 minutes or until batter is smooth. Add 5 tablespoons butter, 1 tablespoon at a time, beating after each addition. Smooth batter into a 9-inch springform pan coated with baking spray. Cover and let rise in a warm place (85°), free from drafts, 1 1/2 hours.
Preheat oven to 450°.
Combine remaining 1 tablespoon oil, grapes, and pears; arrange in a single layer on a baking sheet. Bake at 450° for 20 to 25 minutes or until tender. Cool completely. Reduce oven temperature to 350°.
Melt remaining 1 tablespoon butter. Combine grape mixture, butter, pecans, brown sugar, and cinnamon. Arrange mixture over dough. Bake at 350° for 30 minutes or until a wooden pick inserted in center comes out clean. Cool in pan for 15 minutes on a wire rack. Remove from pan, and place on a serving platter. Serve with whipped topping.