Preheat the oven to 180 °C (350 °F) top/bottom heat. Grease your baking molds well.
Melt the butter in a pot and let it brown until it turns golden and smells nutty (beurre noisette). Pass it through a fine sieve to remove any dark particles. Let cool slightly.
In a bowl, mix the powdered sugar, ground almonds, flour, and salt.
Lightly whisk the egg white with a fork (do not beat stiff) and stir into the dry ingredients.
Add the slightly cooled browned butter and mix into a smooth batter.
Fill the batter into the molds (about ⅔ full). Gently press 2 well-drained tangerine segments onto each friand.
Bake for about 18-22 minutes, until golden and baked through (toothpick test).
Let cool slightly, remove from the molds. Sprinkle with lightly toasted flaked almonds and dust with powdered sugar.
