Self-Saucing Chocolate Pudding

Name: Self-Saucing Chocolate Pudding
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Cuisine: American
Ingredients: 80 grams butter; 185 grams milk; 100 grams light brown sugar; 2 eggs (large (size 6)); 1 tsp vanilla extract; ½ table salt; 2 tsp baking powder; 225 grams plain flour ((all-purpose/standard grade)); 2 tablespoons unsweetened cocoa powder ((Dutch-processed)); 500 mL boiling water; 1 tablespoons instant coffee ((espresso powder)); 3 tablespoons unsweetened cocoa powder ((Dutch-processed)); 150 grams light brown sugar; 1 tsp cornstarch