Bity
This dot cake is my take on the viral sprinkle-topped cake cups that took over my phone this year. A box of funfetti mix bakes into a sheet, paper cups stamp out thick rounds, and every cup gets a level layer of vanilla frosting before being dipped, face down, into a bowl of rainbow hundreds and thousands.
In short, a dot cake is a round of funfetti sheet cake cut out with a paper dessert cup, filled level with vanilla frosting and dipped face down into rainbow hundreds and thousands, so the top looks like one colourful dot. It takes about 2 hours including baking and cooling, one box of cake mix makes 4 to 8 cups, and they are best eaten straight away.
My niece declared them “the best thing ever made” with sprinkles stuck to her chin, which I’m counting as a five star review. They look like something from a fancy bakery, but honestly, the hardest part is waiting for the cake to cool.
Quick Breakdown
Why You’ll Love This Dot Cake
- Bakery look, box mix effort. A packet of cake mix and a tub of frosting do most of the work.
- Built-in serving cups. The paper cups are both the cutter and the dish, so there’s no slicing and very little mess.
- That crunchy sprinkle top. A full layer of nonpareils gives every spoonful a satisfying crunch against soft sponge.
- Perfect for parties. Kids love them, and they line up beautifully on a dessert table.
- Endlessly customisable. Change the cake flavour, frosting colour or sprinkle mix to suit any occasion.
Ingredient Notes
- Vanilla cake mix. One box, about 15.25 oz (432 g). I used a funfetti style mix with little coloured bits in it, which is why the sponge has those bright speckles. Any sturdy vanilla sheet cake works too.
- Eggs, oil and water. Whatever your box asks for, usually three eggs, oil and water.
- Vanilla frosting. Two tubs of shop-bought frosting, or one batch of homemade buttercream. If you make your own, ThermoWorks explains why butter between 65 and 75°F whips into the smoothest icing.
- Rainbow sprinkles. One to two cups of hundreds and thousands, also called nonpareils. The tiny round balls give the signature polka dot look far better than long strands.
- Paper dessert cups. Small, sturdy cardboard cups, roughly the width of a large biscuit cutter.
What Is a Dot Cake?
A dot cake is an individual round of cake served in a cup, topped with a flat layer of frosting and a solid coating of tiny round sprinkles, so from above it looks like a single colourful dot. The craze is usually credited to a New York bakery called The Dot Cakes, and once the videos hit social media, home bakers everywhere started making their own.
The clever part is the cup. Instead of cutting the cake with a cookie cutter and then moving each piece, you press the cup straight into the sheet cake. The round of sponge sits inside it, ready to frost and serve.
How To Make a Dot Cake
1. Bake the cake. First, mix and bake the vanilla cake in a lined rectangular tin, following the packet directions.
2. Cool it completely. Next, leave the cake to cool fully in the tin. Warm cake crumbles and melts frosting, so don’t rush this.
3. Press in the cups. Turn the paper cups upside down and press them firmly into the cake, spacing them evenly. Depending on your tin and cups, you’ll fit 4 to 8.
4. Lift and press down. Then lift each cup out with its round of cake inside. Push the sponge down slightly so there’s a deeper well at the top of the cup.
5. Fill with frosting. After that, spoon vanilla frosting into each cup until the well is completely full.
6. Smooth it flat. Spread and smooth the frosting so it sits flat and level with the rim.
7. Prepare the sprinkles. Pour the hundreds and thousands into a wide, shallow bowl or tray.
8. Dip face down. Carefully turn each cup upside down onto the sprinkles so the frosted side faces down, then press gently to coat the whole surface.
9. Lift and serve. Finally, lift the cups away, turn them upright and set them on a board. Serve straight away.
For tidier wells, spoon the frosting into a piping bag and pipe it into each cup, then smooth the top flat as before.
Common Mistakes to Avoid
- Frosting a warm cake. The frosting slides and the sprinkles sink. Wait until the sponge is cold right through.
- A domed frosting layer. If the frosting bulges above the rim, the sprinkles won’t sit flat. Scrape it level with a palette knife.
- Using strand sprinkles. Long jimmies give a spiky look instead of neat dots.
- Making them too early. The colours start to bleed into the frosting after a few hours.
Tips for the Best Dot Cake
- Bake the cake the day before, wrap it and keep it at room temperature. Day-old sponge cuts more cleanly.
- Give each cup a little twist as you press it in, like a biscuit cutter, for neat edges.
- Use cold, firm frosting. Soft frosting smears when you turn the cups over.
- Press into the sprinkles gently but evenly. A wobble leaves bald patches.
- Save the cake offcuts for cake pops or a quick trifle.
Storage
A dot cake is one to eat straight away, because the sprinkle colours start to bleed into the frosting after a few hours. I tried saving one for my husband while I finished the photo shoot, and after a few hours some of the colour from the sprinkles had started to bleed into the frosting. It still looked pretty, but it definitely wasn’t as crisp and vibrant as when it was freshly made.
I don’t recommend freezing them either, because the sprinkles soften and the colours run once thawed. If you need to work ahead, bake and cool the sheet cake a day early, then cut, frost and dip just before serving.
Variations and Substitutions
- Homemade sponge. Any sturdy vanilla sheet cake works. My lemon pound cake batter, baked in a shallow tin, makes a zesty version.
- No paper cups? A round cookie cutter, biscuit cutter or the wide end of a large piping tip will cut the rounds; just serve them on small plates.
- Coloured frosting. Tint the frosting pink, blue or yellow for a pop of colour under the sprinkles.
- Themed sprinkles. Use red and green for Christmas, pastels for Easter or team colours for a birthday.
- A little less sugar. These are a celebration treat. If you’re keeping an eye on sweet things, the Academy of Nutrition and Dietetics has a clear guide to added sugars, and smaller cups make smaller portions.
What to Serve With Dot Cake
For a party table, I set the cups out next to a fruity bake like my berry dump cake, so there’s something tart alongside all that sweetness. In autumn, a warm pumpkin dump cake makes a cosy pairing.
If it’s a dessert spread for grown-ups, add a pan of my brown butter skillet cookie and a pot of coffee, and everyone is happy.
Frequently Asked Questions
Cake and Tools
Can you make a dot cake with homemade cake instead of a box mix?
Yes. Any sturdy vanilla sheet cake works, baked in a lined rectangular tin and cooled completely before you press in the cups. Lemon pound cake batter baked in a shallow tin makes a zesty version.
What can you use instead of paper cups for a dot cake?
A small round cookie cutter, biscuit cutter or the open end of a large piping tip can cut the rounds. Without the cups, serve each frosted, sprinkle coated round on a small plate.
How many dot cakes does one box of cake mix make?
Usually 4 to 8 cups from one box of vanilla cake mix (about 15.25 oz or 432 g), depending on the size of your tin and cups. Each cup is generous enough to share.
How far ahead can you make a dot cake?
Bake and cool the sheet cake up to a day ahead, wrap it and keep it at room temperature. Cut, frost and dip the cups just before serving, because the sprinkle colours bleed into the frosting after a few hours.
Frosting and Sprinkles
Do you have to dip a dot cake face down into the sprinkles?
Yes. Turning the frosted cup upside down and pressing it gently into a shallow bowl of sprinkles creates the signature flat, fully coated top. Smooth the frosting level with the rim first so the sprinkles sit flat.
What sprinkles work best for a dot cake?
Rainbow hundreds and thousands, also called nonpareils, give the most colourful polka dot effect. Long strand sprinkles look spiky instead of neat, and you need 1 to 2 cups for dipping.
Can you use coloured frosting for a dot cake?
Yes. Tint the vanilla frosting pink, blue or yellow and it peeks out under the sprinkles. Match the sprinkles to the occasion, such as red and green for Christmas or pastels for Easter.
Can you freeze a dot cake?
No, freezing is not recommended. The sprinkles soften and their colours run as the cake thaws. Bake the sponge a day ahead instead and decorate on the day.
How many calories are in a dot cake?
About 590 calories per serving when the recipe is divided into 12 servings, with roughly 68 g sugar. These figures are estimates; each cup is generous enough to share, so half a cup is a smaller treat.
Ingredients
For the Cake
- 1 box vanilla cake mix about 15.25 oz / 432 g
- eggs, oil and water as called for on the box
For the Frosting
- 2 tubs vanilla frosting or 1 batch homemade buttercream
For Decorating
- 1-2 cups rainbow sprinkles hundreds and thousands
- 4-8 small paper dessert cups
Instructions
- Prepare and bake the vanilla cake in a rectangular baking pan according to the package directions.
- Allow the cake to cool completely.
- Turn small cardboard dessert cups upside down and press them firmly into the cake to cut evenly spaced rounds. Depending on the size of your pan and cups, you may fit 4 to 8.
- Lift each cup out with its round of cake inside, then press the cake down slightly to create a deeper well at the top.
- Spoon vanilla frosting into each cup until the well is completely filled.
- Spread and smooth the frosting until it is flat and level with the rim of the cup.
- Pour the rainbow sprinkles (hundreds and thousands) into a large shallow bowl or tray.
- Carefully turn each cup upside down onto the sprinkles so the frosted side faces down.
- Gently press to coat the entire surface.
- Lift the cups away from the sprinkles, turn upright and place on a serving board. Serve straight away.
