Chocolate Peanut Butter Dump Cake

Name: Chocolate Peanut Butter Dump Cake
Cuisine: American
Ingredients: 2 15.25 oz/432g chocolate cake mixes; 1 3.9 oz/110g package instant chocolate pudding mix; 1 1/2 cups milk (375mL); 1 8 oz/226g package Reese's peanut butter cups minis (unwrapped); 1/2 cup creamy peanut butter; 8 ounces 227g cream cheese, softened; 1 cup 105g powdered sugar; 1/4 cup 57g heavy whipping cream; 1 stick (113g butter (melted)); 1 8 oz/225g container of Cool Whip; 1 12 oz/340g package of Reese's peanut butter cups miniatures (take out of wrappers and chop); Chocolate syrup for garnish