Pecan Mississippi Mud Cake (KitchenPC)

Ingredients

• salted butter: 1/4 cup (softened)
• granulated sugar: 1/2 cup
• eggs: 1
• vanilla extract: 1/2 tsp
• all-purpose flour (unsifted): 1/4 cup
• unsweetened cocoa powder (sifted): 3 Tbl
• salt: 1/4 tsp
• pecans (chopped): 2 Tbl
• salted butter: 3 Tbl
• 2% milk: 1 Tbl
• 2% milk: 2 tsp
• unsweetened cocoa powder (sifted): 2 tsp
• powdered sugar (unsifted): 1 cup
• vanilla extract: 1/8 tsp
• marshmallow cream topping: 1/3 cup
• pecans: 2 Tbl (coarsely chopped)