Crêpe Cake with Blackberry Mascarpone

If you have ever made crêpes before, you know there’s a definitive process you must follow to ensure their success: mix batter, allow batter to rest (this allows air bubbles created during the mixing process to work their way out, the gluten to relax, and the starch molecules to absorb some of the liquid, which gives the batter a thicker and more uniform consistency), warm a well-seasoned crêpe pan (or small nonstick skillet) and add a little fat, then using a ladle, pour a small amount of said batter into the hot pan while simultaneously moving the pan in a smooth, circular motion to quickly and evenly spread the batter in a thin layer to cook. When small bubbles appear around the edges, flip the crêpe (best done with your fingers), let the underside cook for just a minute, and slide it onto a towel-lined plate to cool. The first crêpe is often a bust; the pan may not be seasoned enough yet, the temperature spotty. But persevere, and by the second you should be off and running. The action of crêpe-making becomes muscle memory. To this day, I can almost feel the rhythm of it. Then there is the smell: raw flour and, in the background, a hint of blackberries. Especially in July when the berries are at their peak and a lazy weekend morning spent flipping crêpes yields enough for my new favourite cake, layered with rich mascarpone whipped cream, tart berries, and a little lemon zest. I admit, part of making it is how good it feels to slice through all of its beautiful layers and take the first heavenly bite.

Crêpes:
1½ cups all-purpose flour, unbleached (~ 6 3/8 oz)
2 Tbsp. granulated sugar
2 Tbsp. lemon zest, freshly grated
¼ tsp. sea salt
6 large eggs
2 cups whole milk
½ cup heavy cream
2 Tbsp. unsalted butter, melted

Blackberry Mascarpone Whipped Cream:
1 (8 oz) container mascarpone cheese
1 pt + ¼ cup heavy cream, divided
½ cup confectioners' sugar, unsifted (about 2 ounces), divided
1 Tbsp. lemon zest, freshly grated
2 cups fresh blackberries, divided

Make the Crêpes:
Whisk together flour, sugar, lemon zest, and salt in a large bowl. Process eggs, milk, and heavy cream in a blender until well combined, about 30 seconds. Add flour mixture to egg mixture; process until smooth and frothy, about 1 minute, stopping to scrape down sides of blender as needed. Transfer batter to a container with a tight-fitting lid; seal and chill at least 4 hours or up to overnight.

Remove batter from refrigerator; gently whisk to reincorporate any bubbles or separation.

Brush an 8" nonstick skillet with some of the melted butter, evenly coating bottom of skillet. Cook over medium until butter is hot, 1-2 minutes. Remove from heat. Using a ¼ cup measuring cup, immediately add a scant ¼ cup batter to one side of skillet. Swirl skillet to spread batter in a thin, even layer.

Return skillet to heat; cook over medium until crêpe edges are light golden and set, about 1 minute. Using a small offset spatula, gently lift one edge of the crêpe; using your fingertips, quickly flip crêpe. Cook until other side of crêpe is pale golden and a few spots begin to appear on bottom, 30-45 seconds. Transfer crêpe to a wire rack set over a rimmed baking sheet to cool; cover with a clean, dry lightweight towel.

Repeat steps 3 and 4 with remaining butter and batter, wiping skillet clean and lightly brushing with butter every few crêpes, or as needed. (You should have 20 crêpes to use for cake. Reserve any extra crêpes for another use.) Chill crêpes, covered, until ready to use.

Make the Mascarpone Whipped Cream:
Combine mascarpone, ¼ cup heavy cream, ¼ cup powdered sugar, and lemon zest in bowl of a stand mixer; gently whisk by hand until incorporated. Add remaining 1 pt heavy cream; fit mixer with whisk attachment. Beat mixture on medium-high speed, gradually adding remaining ¼ cup powdered sugar, until stiff peaks form, 1-2 minutes.

Mash ¾ cup blackberries in a medium bowl. Add about half of the mascarpone whipped cream to mashed berries, and fold gently to combine.

Assemble the Cake:
Remove crêpes from refrigerator. Place 1 crêpe on a cake platter or flat serving dish. Using a small offset spatula, gently spread a thin layer (about 3 Tbsp.) of the plain mascarpone whipped cream over crêpe, leaving a ¼" border. Top with 1 crêpe, and gently spread with a layer (about 3 Tbsp.) of the blackberry mascarpone whipped cream.

Repeat process with remaining 18 crêpes, alternating with layers of plain mascarpone whipped cream and blackberry mascarpone whipped cream, until you have used the final crêpe (Do not spread anything on top layer).

Chill remaining plain mascarpone whipped cream until ready to use. Using kitchen shears, trim any excess crispy crêpe edges that may hang over. Cover cake with plastic wrap; chill at least 1 hour and up to 8 hours.

Remove cake from refrigerator, and uncover. Spoon remaining plain mascarpone whipped cream over top of cake, creating a small well about 6" wide in the center.

Pile remaining 1¼ cups blackberries on top. Slice cake using a serrated knife, and serve.

Makes 8-10 servings.