To prepare a gluten free overnight yeasted waffles recipe, first you will need to prepare your ingredients. First, you'll need your flour, baking powder, sugar, salt, and cocoa powder. You can find these ingredients at your local grocery store, or you can buy them online. Then, add your dry ingredients to the wet ingredients and mix them together until they're just combined. Next, pour your batter into the griddle and cook it until it's golden brown, about 6-8 minutes. Once the batter is done, remove it from the heat and allow it to cool for 10 minutes before serving.