In a medium bowl, mix together the flours, baking powder, sea salt, and sugar. In another medium bowl, whisk together the egg, milk, melted butter, and vanilla.

Add the wet ingredients to the dry ingredient bowl and stir to combine. Stir in the poppyseeds, ground flaxseed, and the zest from two lemons. Allow batter to rest for 10 minutes while the waffle iron preheats. Cook waffles according to the waffle maker’s instructions.

While the waffles are cooking, heat some maple syrup with a few tablespoons of butter for topping. Drizzle over the waffles before serving.