Keto Gooey Butter Cake is a simple and delicate dessert that melts in your mouth and is highly addicting! It has a low-carb and gluten-free cake batter crust, topped with a creamy, light, and airy topping, and finished with a dusting of powdered sugar.
Preheat oven to 350 °F and grease a 9x13-inch baking dish.
For the bottom layer: Mix the dry ingredients in a small bowl. Combine the wet ingredients in a medium bowl. Pour the dry flour mixture into the egg and butter mixture. Stir well or mix with a hand mixer to combine.Transfer the batter to the baking dish and spread it into a thin even layer with a rubber spatula or the back of a spoon. Set aside.
For the top layer: Beat the cream cheese in a medium bowl with an electric mixer on medium speed until smooth. Mix in everything else, except the sweetener.Reduce the mixing speed to low and add the powdered sweetener slowly. Continue mixing, while scraping down the sides, until smooth.Pour the topping over the cake layer in the baking dish. Spread evenly, pushing out into the corners.
Bake for 25-30 minutes, until the edges brown and mostly set in the center (it will still jiggle a little). Remove from the oven and place on a wire rack. Dust with approximately ½ tablepsoon powdered sugar, if desired. Then, allow to cool completely. Serve at room temperature or chilled.
Notes
If you're used to sweet treats, you may want to use up to 3 cups of powdered sugar. If you've already been keto for a while and are more sensitive to sweet flavors, 1½ cups should be more than sufficient. Feel free to taste this and adjust it before you top the cake bottom and bake it in the oven.