![\"\"](\"https:\/\/pcgirl.net\/recipes\/wp-content\/uploads\/2020\/05\/Rhubarb-Slab-Cake-with-Cr\u00c3\u00a8me-Fraiche-Frosting.jpg\")
<\/p>\nRhubarb Slab Cake with Cr\u00e8me Fraiche Frosting<\/p>\n
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2 3\/4 cup all-purpose flour, plus more for dusting pans<\/p>\n
2 1\/2 teaspoons baking powder<\/p>\n
1 teaspoon salt<\/p>\n
1 cups unsalted butter<\/p>\n
1 3\/4 cups white granulated sugar<\/p>\n
3\/4 cup milk<\/p>\n
6 large egg whites<\/p>\n
2 teaspoons pure vanilla extract<\/p>\n
1\/2 cup roasted rhubarb (recipe follows)<\/p>\n
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Preheat oven at 350 degrees F and grease a 13×9-inch baking pan. Line with parchment paper and set aside. In a medium bowl, add the flour, baking powder and salt. Whisk until combined. Set aside. In a large bowl, combine sugar and butter and beat until light and fluffy with a hand mixer. In a small bowl, combine in the milk, egg whites, vanilla extract and 1\/2 cup rhubarb puree and whisk until combined.\u00a0 Add the dry ingredients into the butter and sugar mixture, in parts. Slowly add in milk\/egg\/rhubarb mixture and continue stirring until combined. Pour the batter into the prepared baking pan and transfer to the oven to bake for 25 minutes, until a knife inserted into the center comes out clean. Allow the cake to cool to room temperature. Top with Cr\u00e8me Fraiche Frosting and sprinkles!<\/p>\n","protected":false},"excerpt":{"rendered":"
Rhubarb Slab Cake with Cr\u00e8me Fraiche Frosting 2 3\/4 cup all-purpose flour, plus more for dusting pans 2 1\/2 teaspoons baking powder 1 teaspoon salt 1 cups unsalted butter 1 3\/4 cups white granulated sugar 3\/4 cup milk 6 large egg whites 2 teaspoons pure vanilla extract 1\/2 cup roasted rhubarb (recipe follows) Preheat oven at 350 degrees F and grease a 13×9-inch baking pan. Line with parchment paper and set aside. In a medium bowl, add the flour,…<\/p>\n