Kilo Cupcakes Recipe: A Reliable Big-Batch Vanilla Bake

Kilo cupcakes are a large batch of soft vanilla cupcakes made with one kilogram of flour, butter, sugar, eggs, and milk. The simple creaming method gives them a tender crumb, and the recipe makes 48 cupcakes that can be served plain or finished with a quick vanilla buttercream.

Ingredients

For the cupcakes:
8 cups (1 kg) all-purpose flour, measured by weight if possible
3 3/4 cups (750 g) granulated sugar
2 cups (454 g) unsalted butter, softened but not melted
10 large eggs (about 500 g without shells), at room temperature
2 1/2 cups (600 ml) whole milk, at room temperature
2 tablespoons (24 g) baking powder
2 teaspoons (10 g) fine salt
2 tablespoons (30 ml) vanilla extract
48 standard paper cupcake liners
For the optional vanilla buttercream:
1 cup (227 g) unsalted butter, softened
4 cups (480 g) powdered sugar, sifted if lumpy
2 tablespoons (30 ml) milk or cream, plus more as needed
1 teaspoon (5 ml) vanilla extract
1/8 teaspoon (about 0.5 g) fine salt

Instructions

Heat the oven to 350°F (175°C). Line four standard 12-cup muffin pans with paper liners. The recipe timing assumes that two pans fit in the oven together, so the cupcakes bake in two rounds. If your oven fits only one pan, work in four rounds and allow extra baking time.
Whisk the flour, baking powder, and salt together in a large bowl until the raising agent is evenly distributed. In a separate small bowl or measuring jug, stir the vanilla into the milk. Set both mixtures within reach before you begin combining the batter.
In a very large mixing bowl, beat the softened butter and granulated sugar with a hand mixer or stand mixer on medium speed for 3 to 4 minutes. Scrape down the bowl once or twice. The mixture should look lighter and fluffy, though it will not become completely white. Properly softened butter should give slightly when pressed but should not look oily.
Add the eggs one at a time, beating after each addition just until incorporated. Scrape the bowl, then mix in the vanilla and milk mixture. The batter may look a little curdled at this stage; adding the dry ingredients gradually should bring it together. If using a smaller mixer, divide the creamed butter mixture between bowls before adding the remaining ingredients rather than overfilling the bowl.
Add about one-third of the flour mixture and mix on low just until most of the dry flour disappears. Pour in half the milk mixture, then repeat with another third of the flour, the remaining milk, and the final flour. Stop as soon as the batter is smooth with no obvious dry pockets. A few small lumps are preferable to overmixing, which can make the cupcakes firm.
Divide the batter evenly among the 48 lined cups, filling each about two-thirds full. A level 1/4-cup measure is a useful starting point, but cup sizes differ, so use the fill level as your guide. Bake two pans at a time for about 20 minutes, switching their positions only if your oven browns unevenly. Begin checking at 18 minutes: a toothpick inserted near the center should come out clean or with a few moist crumbs, and the tops should spring back lightly.
For an additional food-safety check, place an instant-read thermometer in the center of a cupcake without touching the pan. USDA FSIS lists 160°F (71°C) as the safe minimum internal temperature for egg dishes; confirm the cupcake center reaches at least that temperature. Transfer the pans to racks for 5 minutes, then lift out the cupcakes and cool completely, about 50 minutes from the time the final batch leaves the oven.
To make the buttercream, beat the softened butter on medium speed until smooth and creamy, about 2 minutes. Add the powdered sugar in three additions on low speed, scraping the bowl as needed. Beat in the milk or cream, vanilla, and salt, then increase to medium speed for 1 to 2 minutes. Add another teaspoon of milk at a time if it is too stiff to spread. Frost the cupcakes only when fully cool.

Tips

Weigh the flour for a consistent batch. Eight cups is an estimate because flour settles and cup measurements vary. Spoon flour lightly into cups and level it without packing if you do not have a scale; excess flour is a common reason cupcakes turn out dry or dense.
Keep the butter soft, not melted. Melted butter cannot trap air with the sugar, so the cupcakes may bake up flatter and heavier. If the butter is still cool and firm, cut it into small pieces and let it soften before mixing rather than microwaving it until partly liquid.
Mix gently after adding flour. Stop as soon as the dry ingredients are incorporated. Scraping the bowl helps avoid flour pockets without needing to beat the batter for a long time.
Make a smaller batch if needed. You can halve every cupcake ingredient, including using 5 eggs, for 24 cupcakes. Beat the eggs together first and weigh or measure half if you want a more precise split. Bake one pan at a time and start checking at 18 minutes.

Serving Suggestions

Serve the cupcakes plain with coffee, tea, or a glass of milk, or add the buttercream for a classic party-style finish. For a simple presentation, spread a thin layer of frosting with a small spatula rather than piping tall swirls; the batch’s buttercream quantity is intended to give each cupcake a modest topping. A little grated lemon zest, colored sprinkles, or a few berries on top adds a finishing touch without changing the basic vanilla flavor.

For a gathering, cool the cupcakes fully before arranging them on a platter so the paper liners stay neat and any frosting holds its shape. If serving a mix of plain and frosted cupcakes, label the frosted ones when guests may need to avoid particular ingredients. Set out only what you expect to serve and keep the rest chilled or covered according to the storage guidance below.

Variations

Lemon vanilla: Add 2 tablespoons (about 12 g) finely grated lemon zest to the sugar and rub it between your fingers before creaming with the butter. The zest perfumes the batter without adding enough liquid to affect its texture. A little lemon juice can be added to the frosting, but replace an equal amount of milk so the icing does not become runny.

Chocolate: Replace 1/2 cup (60 g) of the flour with 1/2 cup (45 g) unsweetened cocoa powder. Sift the cocoa with the remaining flour and add 2 tablespoons (30 ml) extra milk if the batter seems noticeably thicker than the vanilla version. Cocoa makes the cupcakes richer and slightly less tender, so avoid baking them past the point when a tester comes out clean.

Spiced cupcakes: Whisk 2 teaspoons (4 g) ground cinnamon and 1/2 teaspoon (1 g) ground nutmeg into the dry ingredients. The mild spices work well with vanilla buttercream and are easy to adjust to taste. For a less sweet finish, skip the buttercream and dust the cooled cupcakes lightly with powdered sugar just before serving.

No buttercream: Leave the cupcakes plain, or use a thin glaze made by mixing 1 cup (120 g) powdered sugar with 1 to 2 tablespoons (15 to 30 ml) milk. A glaze is sweeter and sets with a light sheen rather than the creamy texture of buttercream. Add liquid a little at a time because a small amount can change the consistency quickly.

Storage and Reheating

Let the cupcakes cool completely, then refrigerate them within 2 hours if you are not serving them. Store plain or frosted cupcakes in a covered container in the refrigerator for 3 to 4 days. Buttercream firms up when cold, so let a portion sit at room temperature for about 30 minutes before serving for a softer crumb and topping. Avoid stacking frosted cupcakes unless the frosting has firmed and there is enough room to protect the tops.

For longer storage, freeze unfrosted cupcakes in a single layer until firm, then wrap them individually or place them in a freezer-safe container for up to 2 months. Thaw them covered at room temperature for about 1 to 2 hours, then frost. Cupcakes are usually best served at room temperature and do not need reheating. If you choose to warm a refrigerated leftover, USDA FSIS guidance is to reheat leftovers to 165°F (74°C); the frosting will soften, and the cake may become drier.

Frequently Asked Questions

Why is this called a kilo cupcakes recipe?

The name refers to the recipe’s 1 kilogram of flour, which makes it a practical large batch for parties, bake sales, or sharing. It is not a special baking technique, and the cupcakes are ordinary vanilla cupcakes made with a straightforward creaming method.

How many cupcakes does one kilo of flour make?

This formula makes about 48 standard cupcakes when each lined cup is filled roughly two-thirds full. The exact yield can shift with the size of your muffin pans and how much batter you put in each liner. If you fill the cups more generously, expect fewer cupcakes and watch for a slightly longer bake.

Can I make the batter ahead?

For the most even rise, bake the batter soon after mixing because the baking powder starts working once it is hydrated. If you need to get ahead, bake the cupcakes, cool them completely, and refrigerate or freeze them instead. Mixing the dry ingredients in advance is also convenient; keep that mixture covered and separate from the wet ingredients until baking day.

Can I use self-rising flour instead of all-purpose flour?

All-purpose flour is the intended choice because the recipe already includes baking powder and salt. Self-rising flour has a different amount of raising agent and salt, which varies by product, so substituting it directly can make the cupcakes rise unevenly or taste too salty. If it is your only option, use a tested self-rising-flour cupcake formula rather than guessing at an adjustment for this large batch.

Why did my cupcakes sink in the middle?

Common causes include opening the oven early, underbaking, using old baking powder, or beating the batter for too long after adding flour. Check that the oven has reached temperature, avoid moving the pans during the first 15 minutes, and test the centers before removing the cupcakes. Also make sure each liner is filled evenly; overfilled cups can rise quickly and collapse as they cool.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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