3 cups fresh berries (such as sliced strawberries, raspberries, and blueberries)
Make cake in two 8 inch round cake pans as directed on Vanilla Cake Mix package. Cool completely and cut into 1 inch cubes.
In a mixer, fitted with a whisk attachment, whisk the mascarpone cheese. Slowly add the heavy cream and whisk on high making sure the cream is incorporated into the cheese. Scrap down sides of bowl periodically. Whisk until mixture is thick and forms soft peaks. Add the vanilla and sugar, mix. Gently fold in the jar of Stonewall Kitchen Lemon Curd and lemon peel.
In a trifle bowl, measuring approximately 8 ½ inches high and 5 inches wide, layer one half of the cake cubes, one third of the lemon cream mixture, and one third of the berries. Repeat these layers and end with the last third of the lemon cream topped with the last of the berries.