Lightly coat a 2-quart soufflé dish with teaspoon butter.
Combine ¾ cup granulated sugar in large bowl with the flour, 3 tablespoons cocoa, baking powder and salt. Add hot milk, melted butter, and vanilla. Using a Cui- sinart® Hand Mixer on low speed, beat until smooth. Spread into prepared soufflé dish.
Stir together remaining ½ cup granulated sugar, brown sugar, remaining ¼ cup cocoa and toasted pecans in small bowl; sprinkle mixture evenly over batter. Com- bine hot water, espresso and Kirschwasser; pour over batter. Do not stir.
Insert rack in the ceramic pot of the Cuisinart® Slow Cooker. Place soufflé dish on the rack. Cover and press the on/off button to turn the unit on. Set time to 3 hours and press High; slow cooker will automatically switch to Warm when cooking time has elapsed. Let stand for 30 minutes before serving.
Serve warm or chilled in dessert dishes, spooning both cake and pudding-like mixture on bottom into the dish. Add a scoop of vanilla ice cream or frozen yogurt, if desired.