Easy One-Bowl Sugar Cookie Cake
This sugar cookie cake is like a giant, soft bakery sugar cookie in cake form, and you only need one bowl to stir the batter together. No stand mixer, no chilling, just a thick, buttery round that bakes up in under half an hour.
A quick vanilla glaze and a handful of rainbow sprinkles make it party-ready, but a dusting of powdered sugar works on a Tuesday just as well. The center stays tender and chewy while the edges turn lightly crisp.
Why This Sugar Cookie Cake Works
This is the dessert I reach for when I want something that looks like I tried harder than I did. The batter comes together by hand in about five minutes, and the cake bakes into a thick, soft round with that distinct sugar-cookie chew.
The edges get faintly golden and crisp while the middle stays tender. A simple vanilla glaze and sprinkles take it over the top, but honestly, a snowy blanket of powdered sugar is all it needs on a regular weeknight.
Ingredients
- 10 tbsp unsalted butter, melted and cooled slightly: This gives the cookie its rich, buttery flavor. If the butter is too hot, the egg will scramble, so let it sit a few minutes.
- 3/4 cup granulated sugar: Regular white sugar keeps the texture crisp-edged and soft inside.
- 1 large egg, at room temperature: A cold egg can make the melted butter seize up, so pull it from the fridge early.
- 2 tsp vanilla extract: Use the good stuff here, it’s the main flavor note.
- 1 1/2 cups all-purpose flour: Spoon and level the flour, don’t scoop straight from the bag, or the cake will be dry.
- 1/2 tsp baking powder: For just enough lift.
- 1/4 tsp baking soda: Helps with browning and tenderness.
- 1/2 tsp salt: Balances the sweetness.
- 1/4 cup rainbow sprinkles (jimmies): These are optional, but they make it a celebration. The long, skinny sprinkles hold their shape best.
- For the glaze: 3/4 cup powdered sugar, 2 to 3 tbsp milk, 1/2 tsp vanilla extract, plus extra sprinkles for the top.
Variations / Substitutions
- Gluten-free: Use a 1:1 gluten-free baking flour that contains xanthan gum. The texture will be slightly more crumbly but still tender.
- Dairy-free: Swap in a vegan butter stick that melts well; the cookie comes out a little less rich but holds its shape.
- Flavor twist: Replace 1/2 tsp of vanilla with almond extract for a wedding-cake vibe, or add 1/2 tsp of lemon zest to the sugar for brightness.
- No sprinkles: Leave them out or fold in 1/4 cup mini chocolate chips instead.
If you love this, try my Soft Cut-Out Sugar Cookies next.
How To Make Sugar Cookie Cake
Step 1: Whisk the Wet Ingredients
In a large bowl, whisk together the 10 tbsp melted butter and 3/4 cup granulated sugar until the mixture looks glossy and smooth, about 1 minute. Add the egg and 2 tsp vanilla, and whisk again until everything is combined and slightly thickened.
The mixture should look like wet sand with no greasy streaks. Make sure the butter is only warm, not hot, when you add the egg, or it will start to cook in the bowl.
Step 2: Fold in the Dry Mix
Add the 1 1/2 cups flour, 1/2 tsp baking powder, 1/4 tsp baking soda, and 1/2 tsp salt directly to the bowl. Stir with a wooden spoon or spatula until a soft dough forms, then fold in the 1/4 cup sprinkles.
The dough will be thick, a little sticky, and speckled with color. Stop stirring as soon as the flour disappears, overworking the dough can make the cake tough instead of tender.
Step 3: Bake the Cookie Cake
Preheat the oven to 350°F (175°C). Press the dough evenly into a parchment-lined 9-inch round cake pan, using damp fingertips to smooth the top. Bake for 18 to 20 minutes, until the edges are golden and the center looks set but feels slightly soft when pressed gently.
The cake will puff a bit and might develop a few fine cracks on the surface. It continues setting as it cools, so don’t be tempted to keep it in the oven until it feels completely firm. Let it cool in the pan for 10 minutes, then lift it out by the parchment and transfer to a wire rack to cool completely.
Step 4: Drizzle and Slice
In a small bowl, whisk the 3/4 cup powdered sugar, 2 tbsp milk, and 1/2 tsp vanilla until smooth. Add more milk a few drops at a time if the glaze is too thick; you want it pourable but not watery. Drizzle the glaze over the cooled cake in a zigzag pattern, then scatter extra sprinkles over the top. Slice into wedges and serve.
The glaze sets up soft and shiny after about 10 minutes, which also makes slicing cleaner. For the neatest wedges, run a sharp knife under hot water and wipe it dry between cuts.
A Few Notes Before You Start
- Use a room-temperature egg so the melted butter doesn’t turn lumpy when you whisk it in. If the egg is cold, set it in a mug of warm water for 5 minutes.
- The center of the cookie cake should look slightly underdone when you pull it from the oven. It firms up as it cools, so trust the 18 to 20 minute window and the golden edges as your cue.
- If you skip the glaze, a light dusting of powdered sugar just before serving adds sweetness without extra effort. A scoop of vanilla ice cream alongside is never a bad idea either.
- For an even chewier texture, bake the cake a minute less and let it cool completely in the pan on a wire rack. The trapped steam keeps the center extra soft.
Keeping the Cookie Cake Fresh
- Refrigerate: Store the cake covered at room temperature for up to 3 days, or in the fridge for 5 days. Keep it in an airtight container so it doesn’t dry out.
- Reheating: Warm individual slices in the microwave for 10 to 15 seconds to bring back that just-baked softness. Unglazed slices reheat best, but glazed ones work too if you don’t mind the glaze getting a little glossy again.
Frequently Asked Questions
Can I use salted butter?
Yes. Reduce the salt in the dough to 1/4 tsp and proceed as written. The cookie will taste slightly more rounded and a little less sweet.
Why did my cookie cake turn out dry?
That almost always comes down to measuring the flour. If you scoop the measuring cup straight into the bag, you can pack in up to 25% more flour than the recipe calls for. Spoon the flour into the cup and level it with a knife, and the cake will stay tender.
Can I double the recipe?
Absolutely. Press the dough into a parchment-lined 9×13-inch pan and bake at the same temperature for 25 to 28 minutes, until the edges are golden and the center is just set. The larger cake serves about 15.
Can I freeze the cookie cake?
You can. Let the unglazed cake cool completely, wrap it tightly in plastic wrap and foil, and freeze for up to 2 months. Thaw it on the counter overnight, then glaze and slice before serving.
Sugar Cookie Cake Recipe
Ingredients
Method
- Whisk the melted butter and sugar in a large bowl until glossy, then whisk in the egg and vanilla.
- Stir in the flour, baking powder, baking soda, and salt until a soft dough forms, then fold in the 1/4 cup sprinkles.
- Press the dough into a parchment-lined 9-inch round cake pan and smooth the top. Bake at 350°F (175°C) for 18 to 20 minutes, until the edges are golden and the center is set but still slightly soft. Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
- Whisk the powdered sugar, 2 tbsp milk, and vanilla for the glaze, adding more milk a few drops at a time until pourable. Drizzle over the cooled cake, top with extra sprinkles, and slice into wedges.
