Preheat the oven to 425F (220C). Grease and line a 12×16 inch (30x40cm) baking sheet with parchment paper.
In a large bowl whisk together the dry ingredients: flour, oat flour, almond flour, baking powder, baking soda and salt.
Mix the eggs with sugar, vanilla extract and butter. Add buttermilk and add the flour mixture. Mix until well combined.
Pour the batter into the prepared pan and spread evenly.
Divide the pan into thirds, or quarters and sprinkle your favorite toppings on the batter.
Bake for 13-15 minutes, until set and slightly golden.
Cut into 24 slices, and serve with honey or maple syrup. Enjoy.