Whip 1 Cup Heavy Whip Cream with 1 Tbsp sugar.
Mix enough apricot preserve with butter knife in a bowl to soften it. There should be enough to cover one layer of the cake
Frosting:
3 egg whites - Bain Marie
1 stick butter - Soft
1 Cup Sugar - divided into 2/3 Cup for egg whites and 1/3 cup for butter; use 'fine' sugar if you have it
Beat egg whites over bain marie and add sugar gradually while a stick of butter is beaten in a mixer with 1/3 cup of sugar. Once the egg white has reached meringue consistency - stiff peak but still "shiny" remove from the heat. Butter should be pale and fluffy. Place the butter bowl over a bowl of ice with ice water to keep it cool (especially in summer where the kitchen temperature is above 75'F). Scoop 3rd of the meringue into the butter and mix. Then, add the next. Set it aside in a refrigerator while you are assembling the cake, whip cream and apricot preserve into layers.
Frost the cake with butter cream and decorate.