First, mix all the dry ingredients together in a large bowl - you can use a mixing bowl. Then add one egg at a time until you have a smooth and slightly fluid mixture. My eggs were small, so I needed to use 5 of them. Divide the mixture into portions, totaling approximately 400 ml. Our waffle iron is non-stick and there is oil in the batter, so you "just" need to pour the batter in. It makes 2 waffles at a time and typically takes 7-9 minutes to be fully baked. Let them cool on a baking rack afterwards. When they have cooled slightly, spread them with mayonnaise, thin slices of avocado, and shredded, cold-smoked salmon. Enjoy.