I made a sham torte for my Grandmas funeral last week, and people told me it tasted exactly like Grandma used to make (biggest compliment I could have received).
6 egg whites
2 cups sugar
1 tablespoon vinegar
1 tsp vanilla
Beat egg whites, sugar (added gradually), vinegar, and vanilla until stiff peaks form.
Spread in lined, oiled (pam sprayed) 9x13 cookie sheet. Baked in 300 degree oven for 1 hour. Turn off oven and let sit for a couple more hours.
Serve with strawberries and whipped cream.
Sorry to hear of your loss.