Graveyard Pudding Parfait

Name: Graveyard Pudding Parfait
Ingredients: ⅔ cup Light Brown Sugar; ¼ cup Unsweetened Cocoa Powder; 3 tbsps Cornstarch; ½ tsp Instant Coffee Granules (optional); 2 ¾ cups Prairie Farms Whole Milk; ¾ tsp Kosher Salt; 4 Large Egg Yolks (room temperature); 1 Large Egg (room temperature); 4 oz Semisweet Chocolate (chopped); 4 tbsps Prairie Farms Unsalted Butter (cut into ½ inch pieces, chilled); 2 tsps Pure Vanilla Extract; 1 cup Prairie Farms Heavy Whipping Cream (chilled); ¼ cup Powdered Sugar; 1 tsp Pure Vanilla Extract; Green Food Coloring; 20 Chocolate Sandwich Cookies (crushed); 8 Milano Sandwich Cookies