This easy pecan praline sheet cake features a soft, buttery brown sugar cake topped with rich, fudgy praline frosting loaded with toasted pecans. A delicious 9×13-inch cake for pecan lovers!
Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking pan. If you plan to remove the entire cake for serving, line with parchment so that it overhangs on the long sides.
Whisk together the flour, baking powder, baking soda, and salt. Set aside.
Using an electric mixer on medium speed, beat the butter and brown sugar until light and fluffy (about 3-4 minutes).
Add the eggs one at a time, mixing well after each addition. Mix in the vanilla.
Reduce the mixer speed to low. Add the flour mixture in three portions, alternating with two portions of buttermilk. Mix just until combined.
Spread the batter evenly in the prepared pan. Bake 28 to 34 minutes, or until the cake is lightly browned, springs back when gently pressed near the center, and a pick inserted into the center comes out with just a few moist crumbs.
Place the pan on a wire rack and let the cake cool for 10 to 15 minutes while you prepared the topping.
To make the topping:
Combine the butter, brown sugar, cream, and salt in a medium saucepan. Cook over medium heat, stirring frequently, until the butter melts and the mixture is smooth.
Bring to a gentle boil, with bubbles appearing evenly across the surface. Cook for 1 minute, stirring frequently.
Remove from the heat and let stand for about 1 minute. Stir in the vanilla.
Whisk in the confectioners’ sugar until smooth, then immediately stir in the toasted pecans.
Immediately spoon the warm topping over the warm cake, spreading it quickly and gently to cover the surface.
Let the cake cool completely and the topping to set before slicing.
Notes
Pecans: Chop the pecans into fairly small pieces (about 1/4 inch) for even distribution and easier slicing.
Topping: Have all the ingredients measured before beginning. The topping thickens as it cools, so spread it promptly. It should set into a soft, fudgy layer rather than becoming hard like praline candy.
Slicing: Use a sharp knife and a gentle sawing motion to cut through the topping without compressing the tender cake. Wipe the knife between cuts.
Storage: Cover tightly and store at room temperature for up to 2 days or refrigerate for up to 5 days. Bring refrigerated slices to room temperature before serving.