Flourless Chocolate Cake Recipe

Heat oven to 275 degrees. Lightly butter a 9-inch springform pan and dust with cocoa powder, remove excess by shaking pan. Set aside.

In top of double boiler melt chocolate and butter together until smooth. Remove from heat. Quickly whisk egg yolks into melted chocolate.

Beat egg whites and cream of tartar until foamy with an electric mixer on high speed. Then slowly add sugar and beat until medium peaks form when beaters are lifted. Do not overbeat.

In thirds, gently fold egg whites into melted chocolate mixture. Pour into prepared pan and bake for 20 to 30 minutes. Test for doneness with a toothpick.