1. Preheat oven to 350°.
2. Pour sugar into a 9-inch round cake pan. Place cake pan over medium heat. Cook 6 minutes or until sugar dissolves and is golden, shaking cake pan occasionally with tongs. Immediately remove from heat; set aside.
3. Place eggs in a medium bowl; stir with a whisk until foamy. Add extracts and milks; stir with a whisk. Stir in 1/4 cup almonds. Pour mixture into prepared cake pan. Cover with foil; place in a large shallow roasting pan. Place roasting pan in oven; add hot water to roasting pan to a depth of 1 inch. Bake at 350° for 55 minutes or until a knife inserted in center comes out clean.
4. Remove cake pan from water; place on a wire rack. Remove foil. Cool custard in cake pan 30 minutes. Loosen edges with a knife or rubber spatula. Place a serving plate upside down on top of cake pan; invert custard onto plate, allowing syrup to drizzle over custard. Sprinkle with sliced almonds, if desired.