Chocolate buttermilk bread

Name: Chocolate buttermilk bread
Prep time: 10 min
Cook time: 50 min
Total time: 1 h
Cuisine: American, World Cuisine
Ingredients: 1 1/2 cup (180 grams) all purpose flour; 3/4 cup (60 grams) cocoa powder; 2/3 to 3/4 cup raw sugar; 1 1/2 tsp baking powder; 1/2 tsp baking soda; 1/2 tsp salt; 1 egg; 1 cup buttermilk; 1/2 cup Greek yogurt; 1/4 cup melted butter