Preheat the oven to 400. First roll out the dough on a large baking sheet greased.
Make the frangipane: mix butter with sugar. Add the egg, flour, almond extract and almond flour. Spread this mixture over the puff pastry. Slice the apples about 1/8 inches think and arrange them in a circle. Fold over the dough that it covers at least 2 inches. Brunch the galette with agave and sprinkle cinnamon. Bake for 20min.