Preheat oven to 350 degrees.
Sift confectioners sugar, cake flour and salt. Set aside.
Using a hand mixer, beat egg whites on medium-low speed until foamy. Add cream of tartar.
Continue to beat on medium-high until egg whites start to form peaks. Gradually add in sugar slowly and continue to beat until soft peaks form.
Add pure vanilla extract and almond extract. Beat until combined.
Using a rubber spatula, gently fold in the sifted ingredients about 1/4 cup at a time. Repeat until all of the ingredients have been added.
Pour the batter into an ungreased tube pan. Spread evenly. Run a knife in the batter to remove any air pockets. Start around the outer edge working your way inward and around the tube. Bake the cake until lightly golden on the top and an inserted toothpick in the center of the cake comes out clean, about 35 minutes.
Remove cake from the oven and let cool upside down for about 1-2 hours.
Once cooled, run a flat knife around the outer and inner edges of the tube pan to help loosen the cake. Invert the cake onto a plate and remove the outer layer of the pan. To remove the tube of the pan, run the knife along the bottom of the pan. Once loosened, remove the tube.
Dust with confectioners sugar (powdered sugar) if desired. Use a serrated knife to slice the cake. Do not use a regular knife as it will smash down your cake.
Serve plain, with fruit, whipped cream, ice cream or other desired toppings.
Enjoy!