Italian Lemon Almond Flour Cake (Torta Caprese Bianca - grain-free, gluten-free)

(this is about 3 cups + 3 tablespoons) almond flour (not almond meal) or blanched almonds, ground into almond flour

+ 3 tablespoons) white chocolate, chopped

whipping cream or milk (I used 1.5% milk)

+ 1 tablespoon) unsalted butter, softened

(about 2/3 cup) granulated sugar or coconut sugar1

zest of 4 lemons, about 2 tablespoons

large eggs, separated

lemon extract

(about 2 tablespoons) of limoncello or lemon juice

berries and powdered sugar as garnish, optional