Chocolate and Cardamom waffles

Name: Chocolate and Cardamom waffles
Ingredients: 1 1/2 cups (200g) wholewheat flour; A good pinch of salt; 1/4 cup (25g) unsweetened cocoa powder; 2 teaspoons baking powder; 1 teaspoon ground cinnamon; 1/2 - 1 teaspoon ground cardamom, or seeds from 12 green pods, crushed; 1/4 cup caster sugar; 2 large eggs; 1 and 3/4 cups (400ml) milk; 1/4 cup yoghurt; 50g milk chocolate (chips/bar), melted; 1 teaspoon vanilla extract; 3 tablespoons vegetable oil (or melted butter); To serve: Icing sugar, creme fraiche, bananas and (vanilla) maple syrup