Food Recipes Slow Cooker Apple Spice Cake 3.5 (31) 2 Reviews We like this crockpot spice cake dusted with a light coating of powdered sugar, but it would be equally delicious drizzled with caramel sauce. By Emily Nabors Hall Emily Nabors Hall Emily has been a recipe developer with Dotdash Meredith brands for a decade. She has contributed dozens of recipes to Real Simple, specializing in flavor-forward weeknight meals that feed a family quickly and affordably, as well as baked sweets that are sure to delight. Real Simple's Editorial Guidelines Updated on August 21, 2022 Print Share Share Tweet Pin Email Photo: Victor Protasio Hands On Time: 30 mins Total Time: 4 hrs 40 mins Yield: 10 serves Ingredients ½ cup chopped walnuts 3 tablespoons packed light brown sugar 2 ¾ cups plus 3 Tbsp. all-purpose flour, divided, plus more for pan 2 tablespoons unsalted butter, melted plus 1/2 cup (1 stick), softened, plus more for pan 1 ½ teaspoons baking powder 1 teaspoon baking soda ½ teaspoon ground cinnamon ¼ teaspoon kosher salt ⅛ teaspoon ground allspice 1 cup granulated sugar 1 large egg 1 teaspoon vanilla extract ½ cup whole buttermilk 1 medium Granny Smith apple, peeled and cut into ½-in. pieces (about 1¼ cups) Directions Tightly twist a 3-foot length of aluminum foil to create a rack for slow cooker. Shape foil into a zigzag across bottom of a 5- or 6-quart round or oval slow cooker, and add 1 cup water. Place lid on slow cooker, and set on LOW. Stir together walnuts, brown sugar, and 3 tablespoons of the flour in a small bowl. Stir in 2 tablespoons melted butter. Butter and flour an 8-cup Bundt pan. Sprinkle brown sugar mixture in an even layer in prepared pan; set aside. Whisk baking powder, baking soda, cinnamon, salt, allspice, and remaining 2¾ cups flour in a medium bowl. Beat granulated sugar and remaining 1/2 cup butter in a medium bowl with an electric mixer on medium until smooth, about 2 minutes. Add egg, and beat on low until incorporated. Stir in vanilla. Add flour mixture to butter mixture alternately with buttermilk, beginning and ending with flour mixture. Beat on low speed just until blended after each addition. Fold in chopped apple. Transfer batter to prepared pan. Place pan in slow cooker, and press into foil rack to ensure pan is level. Drape a clean kitchen towel over slow cooker, and place lid over towel. Pull towel taut under lid. Cook on LOW until a wooden pick inserted in center comes out clean, about 3 hours. Cool cake in pan on a wire rack until just cool enough to handle, about 15 minutes. Invert cake onto a wire rack, and cool completely, about 30 minutes. Print