In 1994 I was diagnosed with celiac disease, which led me to create Celiac.com in 1995. I created this site for a single purpose: To help as many people as possible with celiac disease get diagnosed so they can begin to live happy, healthy gluten-free lives. Celiac.com was the first site on the Internet dedicated solely to celiac disease. In 1998 I created The Gluten-Free Mall, Your Special Diet Superstore!, and I am the co-author of the book Cereal Killers, and founder and publisher of Journal of Gluten Sensitivity.
If using whole almonds, grind into a fine paste in a food processor. Add sugar and process to blend. Place 3 whole eggs and 4 egg yolks in a large bowl, reserving whites. Beat with an electric mixer while slowly adding the almond paste. Mix until fluffy. Add salt, lemon rind and vanilla. Whip the egg whites until stiff but not dry and fold into the mixture. Butter a 9 or 10 inch springform pan, and line with well-buttered parchment (or wax) paper. Pour the batter into the pan. Bake in a 350 degree oven for 45 minutes, or until toothpick comes out dry when inserted in the center of the cake. Cool. Turn the cake out of pan upside down into a serving dish, and carefully remove parchment. Dust with the confectioners sugar.