Food & Cooking Recipes Dessert & Treats Recipes Cake Recipes Cookies-and-Cream Sheet Cake Close Credit: Con Poulos Prep Time: 20 mins Total Time: 2 hrs Yield: 10 to 12 Serves A winner in ice cream aisles from coast to coast, this combination is both kid-friendly and well-liked by the grown-ups, too. Once the yellow-cake mixture is scraped into a buttered baking pan and smoothed with a spatula, you simply scatter broken Oreo cookies over the top for an easy and playful decoration. Directions Preheat oven to 350°F. Brush a 9-by-13-inch or 8-by-12-inch baking pan with butter. Line with parchment, leaving a 2-inch overhang on long sides. Butter parchment. Whisk together flour, baking powder, and salt. Combine eggs and sugar in the bowl of a mixer fitted with the whisk attachment. Beat on high speed until thick and pale, about 4 minutes. Add flour mixture; beat just to combine. Add butter and vanilla; beat to combine. Add sour cream; beat until smooth. Scrape batter into prepared pan, smoothing top with a spatula. Sprinkle with cookie pieces. Bake until top springs back when lightly touched and a tester inserted in center comes out clean, 30 to 35 minutes (for 9-by-13-inch) or about 40 minutes (for 8-by-12). Let cool in pan on a wire rack 10 minutes. Using parchment overhangs, lift out of pan and let cool completely on rack. Cake can be stored at room temperature, wrapped in plastic, up to 1 day.