New York-Style Crumb Cake
*This recipe can easily be doubled for a larger crowd. Baked it in a 9x13-inch baking pan and increase the baking time 5 minutes.
1/3 cup granulated sugar
1/3 light brown sugar
3/4 teaspoons ground cinnamon
1/8 teaspoon kosher salt
8 tablespoons (4 ounces) unsalted butter, melted
1 3/4 cup cake flour
1 1/4 cup cake flour
1/2 cup granulated sugar
1/4 teaspoon baking soda
1/4 teaspoon kosher salt
6 tablespoons (3 ounces) unsalted butter, cut into 6 pieces, softened but still cool
1 extra large egg
1 extra large egg yolk
1 teaspoon pure vanilla extract
1/3 cup buttermilk
Confectioners' sugar for dusting
For the crumb topping:
In a medium bowl, whisk together the sugars, cinnamon, salt, and butter to combine. Using a rubber spatula, stir in the flour and mix until you have a thick, cohesive mix; set aside to cool to room temperature, about 10-15 minutes.
For the cake:
Adjust the oven rack to the upper-middle position and preheat to 325ºF. Cut a 16 x 14-inch piece of parchment paper and fold lengthwise to a 7-inch width. Spray an 8-inch square baking dish with non-stick baking spray and fit the parchment into the dish allowing the excess to over hang. This will make the cake easy to remove after baking.
In the bowl of a stand mixer fitted with the paddle attachment, mix flour, sugar, baking soda, and salt on low speed to combine. Keeping the mixer on low speed, add the butter one piece at a time until the mixture resembles moist crumbs, with no chunks of butter remaining, about 1-2 minutes. Add the egg, yolk , vanilla, and buttermilk. Increase the speed to medium-high and and beat until light and fluffy, about 1 minute. Scrape down sides and bottom of the bowl and briefly mix again.
Pour the batter into the prepared baking pan and spread into an even layer. Break apart crumb topping by rolling the broken dough between your thumb and forefinger to form crumbs about the size of large peas. Sprinkle the crumb pieces evenly over the batter, beginning with the edges and then working toward the center. Do not press the pieces into the batter. Bake for 35-40 minutes until the crumbs are golden and a wooden skewer comes out clean. Cool in the pan on a wire rack for at least 30 minutes. Using the parchment overhang, remove the cake from the pan. Transfer to a serving plate. Dust with confectioners' sugar right before serving. Cake can wrapped in plastic wrap and stored at room temperature for up to 2 days. Enjoy!
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