Whisk the almond flour, baking powder, and salt together in a large bowl for 30 seconds.

Cut in the cold butter with a pastry cutter or your fingers until the mixture looks like coarse crumbs with pea-sized butter pieces, about 3 to 4 minutes.

Stir in the egg with a fork just until a dough forms, about 30 seconds.

Divide the dough into 6 portions, pat each into a 2-inch round about 1 inch thick on a parchment-lined sheet, and bake at 350°F (175°C) for 12 to 15 minutes until golden.

Cool 2 minutes on the sheet, then transfer to a rack. Pull apart warm and serve with butter or jam.