Dulce de Leche Icebox Cake

Step 1

Line a 9-by-5-inch loaf pan with a double layer of plastic wrap, pressing it into the corners and leaving several inches of overhang on each side.

Step 2

In a large bowl and with an electric mixer, beat together the heavy cream, crème fraîche and salt on medium-high until stiff peaks form, 3 to 5 minutes. Transfer 2 cups of the whipped cream to a medium bowl and stir in the sugar. Add the dulce de leche to the remaining whipped cream in the large bowl and beat on medium-high for 1 to 2 minutes until stiff peaks form. Season to taste with more salt.

Step 3

Using a spoon, flick small dollops of both cream mixtures across the bottom and sides of your lined pan. Using a spatula, smooth it into a ¼-inch layer along the edges and bottom.

Step 4

Cover the bottom with 8 cookies, gently pressing them into the cream. Flick more small dollops of both cream mixtures across the surface of the cookies, then smooth the surface.

Step 5

Press a row of cookies upright along the long edge of the pan. Generously scoop the whipped creams using the cookies, alternating flavors, and press them upright against the vertical row. Continue forming rows until the pan is full. Tap the pan against the counter to settle the cookies into the cream. Cover the cookies by flicking the remaining cream across the surface, then smooth it out.

Step 6

Enclose the loaf in the plastic overhang and freeze until completely firm, at least 6 hours. The cake will keep frozen for up to 1 month. To serve, unwrap the top of the loaf, invert the loaf onto a platter, remove the pan and plastic and slice with a serrated knife.