250g Butter Cake Recipe: Ultra-Moist Vanilla Layers With Buttery Frosting Rivers

Step-by-step instructions for ultra-moist vanilla layers

Here’s how to bake layers so tender they melt in your mouth and frosting so rich it looks like rivers of butter.

In a stand mixer fitted with the paddle attachment, beat the 1.1 lb unsalted butter (softened to room temperature) and 2 cups granulated sugar on medium speed for 4-5 minutes. You’re aiming for a light, fluffy texture that nearly doubles in volume and becomes pale in color. This creaming process incorporates air, which creates that signature ultra-moist crumb.

I like to scrape down the sides of the bowl every 30 seconds to ensure everything gets properly incorporated. If you’re using a hand mixer, just work in 30-second bursts—don’t rush this step. The butter should look completely smooth with no lumps, and when you lift the paddle, the mixture should hold soft peaks.

Add the 4 whole large eggs, one at a time, mixing on low speed for 30 seconds after each addition. This slow incorporation prevents the eggs from scrambling. Then add the 2 tsp vanilla extract and 1 tsp vanilla bean paste (if using), mixing just until combined.

Here’s the thing—vanilla bean paste gives that extra depth of flavor that pure extract can’t match. If you don’t have it, don’t skip the vanilla extract, but the paste makes this cake truly special. The mixture should now be thick, smooth, and slightly shiny—like a pale yellow ribbon when you lift the paddle.

Reduce the mixer speed to low and add half of the 2.5 cups all-purpose flour (sifted), the 1 tsp baking powder, and 0.5 tsp salt. Mix just until combined, then add the 0.5 cup milk. Scrape down the bowl, then add the remaining flour and mix again—just until no dry spots remain.

This alternating method ensures even distribution of ingredients and prevents a dense cake. Overmixing here will develop gluten and make the cake tough, so stop as soon as the flour disappears. The batter should be thick but pourable—like a slightly runny cake batter that leaves a trail when you lift the paddle.

Preheat your oven to 350°F and divide the batter evenly between two 8-inch round cake pans lined with parchment paper. Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean. The edges should be golden brown, but the tops might look slightly underdone—that’s normal for this moist cake.

I always check the cake at the 20-minute mark because ovens vary. If the tops brown too quickly, tent the pans with foil. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely. This gradual cooling prevents cracking and ensures even layers.

In a stand mixer fitted with the whisk attachment, beat the 1 cup heavy whipping cream to soft peaks, then gradually add the 3 cups powdered sugar and remaining 1 tsp vanilla bean paste (if not used in cake). Beat on high speed for 2-3 minutes until the frosting is thick, smooth, and holds stiff peaks.

For extra richness, you can also whip the 1.1 lb unsalted butter (softened) until light and fluffy, then fold it into the powdered sugar mixture. This creates that signature “butter rivers” effect. Spread the frosting between the cooled layers and on top, then chill for 30 minutes before slicing. The frosting should be thick enough to hold its shape but still spreadable.

Dietary considerations for 250g butter cake

Gluten-Free Adaptation

For a gluten-free version, swap the 2.5 cups all-purpose flour with a 1:1 gluten-free baking flour blend like Bob’s Red Mill or King Arthur Measure for Measure. Add ½ tsp xanthan gum to mimic gluten’s structure. Reduce milk to ¼ cup to prevent dryness—gluten-free batters absorb more liquid. Bake at 325°F instead of 350°F for 30-35 minutes, checking for doneness at 25 minutes. 💡

Dairy-Free Options

Replace the 1.1 lb unsalted butter with 1 cup dairy-free butter (like Miyoko’s or Earth Balance) or ½ cup coconut oil (solid at room temp). Use 1 cup full-fat coconut milk instead of heavy cream for the frosting, and ½ cup dairy-free milk in the cake. For richness, add 1 tbsp cornstarch to the powdered sugar mixture. The texture stays moist but gains subtle coconut notes. ✨

Lower-Sugar Version

Reduce granulated sugar to 1.5 cups and replace ½ cup with granulated erythritol or monk fruit sweetener (like Lakanto). For the frosting, cut powdered sugar to 2.5 cups and add 2 tbsp lemon juice to balance sweetness. The cake remains tender but lighter. Monitor baking time—lower sugar means slightly faster browning. 🌱

Nut-Free Allergy Note

This recipe is naturally nut-free, but always check ingredient labels for cross-contamination warnings. The vanilla extract and powdered sugar brands (like McCormick or Domino) are typically processed in nut-free facilities. For extra safety, use certified nut-free vanilla bean paste. Store finished cake in a sealed container with a nut-free label if sharing with allergies. 🔒

Egg-Free Substitution

Replace the 4 eggs with 4 tbsp aquafaba (chickpea brine) whipped to stiff peaks, or use ½ cup unsweetened applesauce per egg. For binding, add 1 tsp ground flaxseed mixed with 3 tbsp water per egg. The texture becomes slightly denser but still moist. Bake at 350°F for 30-35 minutes, as egg-free cakes often need extra time. 🥚

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