Chocolate Cake with Ice Cream Sauce

Directions

1. Butter bottoms and sides of two 4-in. fluted tube pans or 6-oz. ramekins with 1 teaspoon butter. Dust with baking cocoa; set aside. In a microwave, melt bittersweet chocolate and remaining butter; stir until smooth. Set aside.
2. In a small bowl, beat egg and yolk on medium speed until light and fluffy. Gradually add sugar, beating until thick and lemon-colored, about 3 minutes. Beat in chocolate mixture. Combine flour and salt; beat into egg mixture just until combined.
3. Spoon batter into prepared pans. Bake at 375° for 15-18 minutes or until a knife inserted in the center comes out clean. Cool for 5 minutes before inverting onto a serving plate.
4. For topping, in a small bowl, combine ice cream and cinnamon. Serve with warm cake.