Chocolate Wacky Cake

Name: Chocolate Wacky Cake
Prep time: 10 min
Total time: 10 min
Cuisine: American
Ingredients: 2 1/4 c. all-purpose flour; 1 1/8 c. granulated sugar; 1/2 c. unsweetened cocoa powder; 1 1/2 tsp. baking soda; 3/4 tsp. kosher salt; 1/2 c. vegetable oil; 1 1/2 tbsp. apple cider vinegar; 1 tbsp. vanilla extract; 1 1/2 c. brewed coffee, room temperature; 10 tbsp. unsalted butter; 1/4 c. cocoa powder; 1/4 c. milk; 1 tsp. vanilla extract; 2 c. powdered sugar; 1/3 c. chopped pecans