Appetizers
Mastro's Steakhouse butter cake delivers the iconic Italian-American dessert that's been wowing diners for decades—layers of rich vanilla cake swirled with velvety buttercream that melts in your mouth.
The secret lies in precise measurements and a gentle baking technique that keeps the texture tender yet sturdy enough to hold those signature swirls. I've recreated this classic after years of perfecting the balance between buttery richness and subtle vanilla flavor.
This recipe stays true to the original by using a simple cake batter enriched with melted butter and vanilla extract, then folded together with a smooth buttercream that's neither too sweet nor too heavy.
The key is baking at a moderate temperature to prevent cracking while ensuring the cake rises evenly, creating those beautiful layers that make this dessert unforgettable. Professional results at home start with these foundational techniques.
What you'll end up with is a cake that's perfectly moist yet sliceable, with swirls of buttercream that stay intact through every bite. The aroma alone—warm vanilla and toasted butter—will have everyone gathered around your table.
Serve it warm with a scoop of vanilla ice cream or dusted with powdered sugar for that classic steakhouse touch.
Pair this butter cake with a strong cup of coffee or a glass of dessert wine for the full experience. The recipe scales beautifully for gatherings, and leftovers stay fresh for days when stored properly. Let's recreate this steakhouse favorite in your own kitchen.
Ingredients for mastro's steakhouse butter cake
Buttery layers and swirled vanilla—just 13 ingredients for Mastro’s iconic cake.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 3 cups | Sifted for even texture |
| Unsalted Butter 🧈 | 1 ½ cups | Cold, cubed for cake batter |
| Granulated Sugar 🍚 | 2 cups | White sugar preferred |
| Pure Vanilla Extract 🌿 | 2 tbsp | High-quality, pure vanilla |
| Large Eggs 🥚 | 4 whole | Room temperature |
| Baking Powder 🧂 | 2 tsp | Aluminum-free preferred |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Milk 🥛 | 1 cup | Whole milk preferred |
| Unsalted Butter (for buttercream) 🧈 | 1 cup | Room temperature, softened |
| Powdered Sugar 🍚 | 3 cups | Sifted for smooth frosting |
| Vanilla Bean Paste 🌿 | 1 tbsp | For extra vanilla flavor |
| Heavy Cream 🥛 | ½ cup | Chilled for stability |
| Powdered Sugar (for dusting) 🍚 | ¼ cup | For classic presentation |
The butter matters here—European-style unsalted butter (like Plugrá or Land O’Lakes) gives that signature richness. Grab the coldest butter from the fridge—it creates flakier layers. For vanilla, Madagascar bourbon vanilla extract (like McCormick) elevates the flavor beyond imitation. The flour? King Arthur or Gold Medal brands are reliable for consistent results. I always sift the flour and powdered sugar together to avoid lumps—worth the extra minute.
No vanilla bean paste? Double the vanilla extract—just know it won’t have the same depth. Running low on heavy cream? Cool whipping cream works in a pinch, but bring it to room temp first. The milk can be swapped for half-and-half**> for extra richness, but whole milk keeps it classic. For the sugar, turbinado or raw sugar adds a subtle caramel note if you’re feeling adventurous. Pre-sifted flour? No problem—just give it a quick whisk to aerate.
This cake keeps beautifully—3 days at room temp> covered loosely, or 5 days in the fridge> wrapped tightly. For the buttercream, store it in an airtight container between layers. Reheat slices in the oven for 10 seconds**> to revive that fresh-baked aroma. I always make a double batch—leftovers disappear fast, especially with coffee or ice cream.
Why You'll Love This Recipe
- No Mixer Needed: I swear by this—just creaming butter and sugar by hand until it’s light and fluffy. No stand mixer, no fuss, and the result? That signature tender crumb you’d expect from a bakery.
- Butter So Rich: Honestly, the moment you taste this, you’ll get why steakhouses serve it with their meals. The butter isn’t just an ingredient—it’s the star, melting into every bite with that pure vanilla depth.
- Weeknight Hero: Between us, this is my go-to for breakfast or dessert when I’ve got zero energy. Slice it fresh, toast it, or pack slices for lunch—it handles everything like a champ.
- Budget Baked Good: Four simple ingredients, one cake that feels like a splurge. The sugar and eggs stretch further than you’d think, and leftovers? They disappear faster than I can say “second slice.”
Step-by-step instructions for Mastro's steakhouse butter cake
Here's how to create that iconic layered cake with buttery richness and vanilla swirls.
Prepare the Cake Batter
Preheat your oven to 350°F and grease three 9-inch round cake pans with the 1.5 cups unsalted butter, reserving a small amount for brushing. Line the bottoms with parchment paper circles for easy removal. In a large mixing bowl, combine the 3 cups all-purpose flour, 2 cups granulated sugar, 2 tsp baking powder, and 0.5 tsp salt. Sift the dry ingredients together to aerate the flour and ensure even distribution.
In a separate bowl, beat the 4 whole large eggs until they're light and frothy. Add the 2 tbsp pure vanilla extract and mix until combined. Gradually pour in the 1 cup milk while mixing on low speed. Cut the 1.5 cups cold unsalted butter into small cubes and add them to the wet ingredients. Beat on medium speed until the mixture is smooth and creamy, about 2-3 minutes. This cold butter creates those signature flaky layers.
Layer and Swirl the Batter
Divide the batter evenly among the three prepared cake pans, filling each about ⅔ full. For the classic Mastro's swirl, pour half of the remaining batter into a separate bowl. Using a rubber spatula, carefully spread each layer evenly in the pans. Then, drizzle the reserved batter in a zigzag pattern over each layer. Gently swirl the batter with the spatula to create those signature marbled patterns.
Bake the cakes for 25-30 minutes or until a toothpick inserted in the center comes out clean. The tops should be golden brown with a slight dome. Rotate the pans halfway through baking for even cooking. Let the cakes cool in the pans for 10 minutes, then transfer them to a wire rack to cool completely before assembling.
Make the Vanilla Buttercream
In a large mixing bowl, beat the 1 cup unsalted butter (for buttercream) with an electric mixer until smooth and creamy, about 3-4 minutes. Gradually add the 3 cups powdered sugar, mixing on low speed until combined. Increase the speed to medium and beat for 2-3 minutes until light and fluffy. Add the 1 tbsp vanilla bean paste and mix until fully incorporated.
In a separate bowl, whip the 0.5 cup heavy cream until soft peaks form. Gently fold this into the buttercream mixture until fully combined. This addition creates a lighter, more stable frosting that's perfect for piping. Taste and adjust sweetness if needed, though the recipe should be perfectly balanced.
Assemble the Cake
Place the first cake layer on a cake stand or plate. Spread a thin layer of buttercream over the top, about ¼ inch thick. This is called a "crumb coat" and helps prevent crumbs from getting into the final frosting. Place the second layer on top and repeat the process. Finally, place the third layer on top of the second.
Spread the remaining buttercream evenly over the top and sides of the cake. For a smooth finish, use an offset spatula or bench scraper. Dust the top and sides with the 0.25 cup powdered sugar (for dusting) using a fine-mesh sieve for that signature Mastro's presentation. Chill the cake in the refrigerator for 30 minutes before slicing to help the layers set properly.
Pro Tips For Making Mastro'S Steakhouse Butter Cake
- Cream Butter Cold: DESCRIPTION:
- Whisk Eggs First: DESCRIPTION:
- Don’t Overmix: DESCRIPTION:
- Bake Until Golden: DESCRIPTION:
Storing and reheating your leftovers
Room Temperature Storage
This cake stays fresh for 3 days at room temperature when stored properly. I always keep it in an airtight container with a piece of parchment paper between layers to prevent drying.
The key is to store it in a cool, dry place away from direct sunlight—my kitchen counter works perfectly. For extra protection, I lightly wrap the cake in plastic wrap before placing it in the container. This method preserves that signature buttery aroma while keeping the texture tender. 🌟
Refrigerator Preservation
Extend freshness to 5 days by refrigerating the cake in an airtight container. The cold temperature slows moisture loss, but I notice the texture becomes slightly denser after a day or two.
To revive slices, I recommend warming them in the oven at 300°F for 10 seconds—this restores that fresh-baked aroma and softness. For best results, let the cake sit at room temperature for 15 minutes before serving after taking it out of the fridge. 💫
Freezer-Friendly Layers
Freeze individual layers or the fully assembled cake for up to 3 months without compromising quality. I wrap each layer tightly in plastic wrap, then place them in a freezer bag with all air removed to prevent freezer burn.
For the assembled cake, wrap it completely in plastic wrap before placing it in the bag. When ready to serve, thaw overnight in the refrigerator and bring to room temperature before slicing. The buttercream may soften slightly, but it regains its perfect consistency after warming. ❄️
Reheating Perfection
For slices that have lost their freshness, I use a quick oven trick: place them on a baking sheet and warm at 300°F for 10-15 seconds until just heated through. This method prevents the buttercream from melting while restoring the cake's moisture.
Microwaving is possible but risks making the buttercream greasy—I only recommend it in 5-second bursts> on low power if absolutely necessary. Always serve reheated slices immediately for the best texture. 🔥
Buttercream Refresh
The buttercream can separate slightly after storage, especially if refrigerated. Simply rewhip it with a hand mixer for 1-2 minutes> until smooth and fluffy again. If it appears too stiff, add 1 tsp heavy cream> and mix until creamy.
For extra flavor after storage, I sometimes add ½ tsp vanilla extract> to revive the aroma. The buttercream should be light and spreadable again within minutes. This trick works wonders for restoring that restaurant-quality finish. 💡
Serving Leftovers
Leftovers make fantastic breakfast treats or afternoon pick-me-ups. I often serve slices with a scoop of vanilla ice cream or a dollop of whipped cream for a decadent dessert. For a morning twist, warm a slice and top with fresh berries and a drizzle of honey.
The cake's rich flavor pairs beautifully with coffee or even a glass of cold milk. Always cover leftovers with plastic wrap or a cake dome to maintain freshness between servings. 🥛
Nutrition facts
Frequently asked questions
Why does Mastro's butter cake have swirls?
The signature swirls create visual appeal and balance the rich flavors. The marbled pattern comes from carefully layering and swirling the batter before baking, creating those iconic vanilla pockets throughout each slice. This technique also helps distribute moisture evenly for that signature tender crumb.
Can I make this cake in a different pan size?
Yes, but adjust baking times accordingly. For 8-inch pans, bake 20-25 minutes instead of 25-30 minutes. For 10-inch pans, reduce batter by 25% and bake 30-35 minutes. Always check doneness with a toothpick. The key is maintaining the same batter depth (~⅔ full) for even cooking.
What's the secret to preventing cracks?
Bake at 350°F and avoid opening the oven door during the first 20 minutes. Let cakes cool in pans for 10 minutes before removing. The cold butter in the batter helps create structure, but rapid temperature changes cause cracks. For extra insurance, tap the pans gently on the counter before baking to settle the batter.
How do I make the buttercream lighter?
Whip the 0.5 cup heavy cream to stiff peaks before folding it into the buttercream. For extra lightness, chill the buttercream for 30 minutes before assembling the cake. If it's too thick, add 1 tsp milk at a time. The cold cream incorporates better when the buttercream is slightly chilled.
Can I substitute buttercream with cream cheese frosting?
Not recommended—this cake relies on buttercream's rich, smooth texture. Cream cheese frosting would overpower the delicate vanilla flavor and alter the classic steakhouse presentation. If you must substitute, use a neutral-tasting whipped cream frosting with 2 tbsp vanilla extract for balance. The buttercream's stability is key for those perfect swirls.