Place butter in a small sauce pan and heat on low until melted. Set aside.
In a mixing bowl, whisk together the powdered sugar and almond flour. Add the egg whites, then the all-purpose flour, the cooled brown butter, and whisk gently until smooth. Fold the lime zest and juice.
BAKE!
Bake for 20 minutes at 350F/180C. (Every oven heats differently, monitor your financiers from 15min). It is ready when the toothpick inserted comes out clean.
Once your Lime Almond Financiers aCakes re out of the oven, let them cool down for about 10min. Then, Unmold, Serve and Enjoy! Bon Appétit!