Chocolate Ricotta Muffins and pancakes

Name: Chocolate Ricotta Muffins (and pancakes)
Ingredients: 1 cup white flour; 1 1/3 cups whole wheat pastry flour; 3/4 teaspoon salt; 2 teaspoons baking powder; 7 tablespoons cocoa powder (preferably Dutch unprocessed); 1 cup sugar; 1 cup semisweet chocolate chips; 2 eggs; 1 cup ricotta cheese; 1 1/3 cups milk; 1 tablespoon vanilla extract; 4 tablespoons melted butter; 1/4 cup whole wheat flour (optional extra for pancakes); 1/2 cup milk (optional extra for pancakes)