For the waffles, preheat a waffle maker to a medium setting and preheat the oven to 140C/275F/Gas 1.
Mix the flour, baking powder, salt and sugar in a large mixing bowl. Whisk in the eggs, milk and butter until well combined.
Brush the waffle maker with a little melted butter and then ladle some of the batter into each well of the waffle maker. Close the lid and cook for five minutes, or until golden-brown and crisp. Remove and place on a tray in the oven to keep warm, while you use the rest of the batter.
For the strawberry compÃ´te, place the sugar and five tablespoons of water with the butter in a saucepan. Add the strawberries and lemon zest. Simmer for five minutes.
To serve, stack the waffles onto each of four plates, top with some strawberry compÃ´te and a dollop of vanilla ice cream. Finish with a drizzle of maple syrup.