Mix flour, baking powder and salt into a bowl and set aside. Preheat the oven to 350 F degrees and line a large baking sheet with parchment paper. Toast the almonds in a pan (or you can also use an oven) for 7 to 8 minutes stirring often until they are fragrant and toasted. Let them cool down and then pulse into large pieces using a food processor. You don't want a almond powder.