1. Rich &  Fudgy : The deep  chocolate flavor and velvety texture are irresistible.
2. Easy to Make : One bowl, one pan, and minimal cleanup—perfect for busy bakers.
3. Buttermilk Magic : Adds moisture and a subtle tang that balances the sweetness.
4. Crowd-Pleasing : Feeds a large group with ease, making it ideal for parties or potlucks.
5. Versatile : Customize with nuts, sprinkles, or a dusting of powdered sugar for extra flair.

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Ingredients You’ll Need

For the Cake:

• 2 cups all-purpose flour
• 2 cups granulated sugar
• 1/2 cup unsweetened cocoa powder
• 1 tsp baking soda
• 1/2 tsp salt
• 1 cup buttermilk , room temperature
• 2 large eggs , room temperature
• 1/2 cup vegetable oil
• 1 tsp vanilla extract
• 1 cup hot water (or hot coffee for deeper chocolate flavor)

For the Frosting:

• 1/2 cup unsalted butter
• 1/4 cup unsweetened cocoa powder
• 1/3 cup buttermilk
• 3 1/2 cups powdered sugar , sifted
• 1 tsp vanilla extract
• Optional : 1/2 cup chopped pecans or walnuts (for topping)

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Step-by-Step Instructions

Step 1: Preheat & Prep

1. Preheat your oven to 350°F (175°C) . Grease and lightly flour a 10x15-inch jelly roll pan or a 9x13-inch baking pan.

Step 2: Make the Cake Batter

1. In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking soda, and salt.
2. Add the buttermilk, eggs, vegetable oil, and vanilla extract. Beat with a hand mixer or whisk until smooth and well combined.
3. Gradually pour in the hot water (or coffee) while stirring. The batter will be thin—this is normal!

Step 3: Bake the Cake

1. Pour the batter into the prepared pan and spread it evenly.
2. Bake for 20–25 minutes , or until a toothpick inserted into the center comes out clean.

Step 4: Make the Frosting

1. While the cake is baking, prepare the frosting. In a saucepan over medium heat, melt the butter. Stir in the cocoa powder until smooth.
2. Remove from heat and whisk in the buttermilk, powdered sugar, and vanilla extract until smooth and glossy. If desired, stir in chopped nuts.

Step 5: Frost the Cake

1. Once the cake is out of the oven, spread the warm frosting evenly over the top of the cake while both are still warm. This helps the frosting set smoothly.
2. Let the cake cool completely before slicing into squares.

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Why This Recipe Works

• Buttermilk Power : Keeps the cake moist and adds a slight tang that enhances the chocolate flavor.
• Hot Liquid Trick : Adding hot water or coffee intensifies the cocoa’s richness while creating a tender crumb.
• One-Bowl Wonder : Minimal mess and effort make this recipe accessible for bakers of all levels.

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Variations to Try

• Add Nuts : Sprinkle chopped pecans or walnuts on top of the frosting for crunch.
• Gluten-Free Option : Substitute all-purpose flour with a gluten-free flour blend.
• Spice It Up : Add a pinch of cinnamon or cayenne pepper to the batter for warmth or heat.
• Dairy-Free Version : Use plant-based buttermilk (almond milk + vinegar) and dairy-free butter.
• Mocha Twist : Add 1 tsp instant espresso powder to the  frosting for a coffee-chocolate kick.

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Tips for Success

• Room-Temperature Ingredients : Ensure the eggs and buttermilk are at room temperature for even mixing.
• Don’t Overbake : The  cake is done when a toothpick comes out clean or with a few moist crumbs. Overbaking can dry it out.
• Storage : Store leftovers in an airtight container at room temperature for up to 3 days or in the fridge for longer storage.

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Serving Suggestions

• Romantic Touch : Dust with powdered sugar or garnish with fresh berries for elegance.
• Brunch Staple : Serve alongside coffee, tea, or milk for a sweet breakfast treat.
• Party Platter : Cut into small squares and serve alongside other desserts like cookies or brownies for variety.

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Final Thoughts

This Chocolate Texas Sheet Cake with Buttermilk is a timeless dessert that combines rich chocolate flavor, moist texture, and effortless preparation. With its gooey frosting, tender crumb, and crowd-pleasing appeal, it’s a recipe that feels indulgent yet approachable. Whether you’re serving it for a special occasion, a casual gathering, or simply indulging in a sweet treat, this cake is sure to bring smiles and satisfaction.

Your turn! Have you ever made a sheet cake before? Share your favorite variations or serving ideas below. 🍫