Name: Mint Chocolate Chip Sheet Cake Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1 3/4 cups all purpose flour; 2 cups granulated sugar; 3/4 cup unsweetened cocoa powder; 2 teaspoons baking soda; 1 teaspoon baking powder; 1 teaspoon salt; 1 cup milk; 1/2 cup vegetable oil; 2 large eggs; 1 teaspoon vanilla extract (optional); 1 cup hot water; 1/2 cup (1 stick) unsalted butter, at room temperature; 3 cups powdered sugar; 1/2 cup heavy whipping cream; 1/2 teaspoon peppermint extract; 2-3 drops green food coloring; 1/4 cup finely chopped dark chocolate (semisweet or bittersweet is fine)

Jump to Recipe· 3.9 from 4 reviews

If you have a soft spot for the refreshing zing of mint combined with rich, velvety chocolate, then this Mint Chocolate Chip Sheet Cake Recipe is about to become your new favorite go-to dessert. It’s a luscious chocolate cake base paired with a dreamy mint-infused frosting, studded with real chocolate chips for that perfect crunch. This isn’t just any sheet cake—it’s a showstopper that’s surprisingly easy to make, perfect for parties, family gatherings, or whenever you just want to treat yourself to something a little extraordinary and utterly delicious.

Ingredients You’ll Need

A close-up view of a square chocolate cake with a thick layer of mint green frosting with small dark chocolate bits swirled on top, covering the whole cake. The cake is cut into four square pieces, one piece is being lifted slightly by a metal spatula with a wooden handle. The cake sits on crumpled white parchment paper on a white marbled surface, showing the dark brown moist texture of the cake under the frosting. Photo taken with an iphone --ar 4:5 --v 7

These ingredients are simple staples you might already have on hand, but each plays a crucial role in bringing this Mint Chocolate Chip Sheet Cake Recipe to life. From the rich cocoa powder that delivers deep chocolate flavor to the peppermint extract that provides that unmistakable minty freshness, every element works in harmony to create a moist, flavorful cake topped with a luxuriously creamy frosting.

1 3/4 cup all purpose flour: The foundation of the cake, giving it structure and a tender crumb.
2 cups granulated sugar: Sweetness that balances the cocoa and brightens the mint flavor.
3/4 cup unsweetened cocoa powder: Adds that rich, chocolaty depth essential for the cake.
2 tsp baking soda: Helps the cake rise beautifully and stay light.
1 tsp baking powder: Works alongside baking soda for perfect texture and lift.
1 tsp salt: Enhances the flavors, preventing the sweetness from becoming cloying.
1 cup milk: Moisturizes the batter and contributes to the tender crumb.
1/2 cup vegetable oil: Keeps the cake wonderfully moist and soft.
2 large eggs: Bind all ingredients together and add richness.
1 tsp vanilla extract (optional): Adds warmth and rounds out the flavor.
1 cup hot water: Intensifies the cocoa flavor and helps create a smooth batter.
1/2 cup (1 stick) unsalted butter, room temperature: The base of a smooth, creamy frosting.
3 cups powdered sugar: Sweetens and thickens the frosting for perfect spreadability.
1/2 cup heavy whipping cream: Lightens the frosting and gives it a silky texture.
1/2 tsp peppermint extract: The star of the frosting, delivering that refreshing minty kick.
2-3 drops green food coloring: Just enough to tint the frosting a cheerful pastel green.
1/4 cup finely chopped dark chocolate: Adds delightful bursts of chocolate chip crunch in the frosting.

How to Make Mint Chocolate Chip Sheet Cake Recipe

Step 1: Prepare and Mix the Dry Ingredients

Start by preheating your oven to 350 degrees Fahrenheit and greasing a 9×13 inch baking pan—or line it with parchment paper for easy removal. In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking soda, baking powder, and salt. This dry mix sets the stage for a cake that’s both moist and perfectly textured.

Step 2: Combine Wet Ingredients

In a separate bowl, whisk the milk, vegetable oil, eggs, and vanilla extract until well blended. Gradually add this wet mixture to your dry ingredients, stirring just until combined—don’t overmix! This balance keeps your cake tender and fluffy.

Step 3: Add Hot Water

Next, gently pour in the hot water. This might make the batter look thin, but that’s exactly what you want for a moist cake. Mix thoroughly, ensuring no dry pockets remain at the bottom or sides of the bowl.

Step 4: Bake the Cake

Pour the batter into your prepared pan and smooth the top with a spatula. Bake for 35 minutes or until a toothpick inserted in the center comes out clean or with just a few moist crumbs. Allow the cake to cool completely before moving on to the frosting.

Step 5: Make the Minty Frosting

Using a stand mixer fitted with a paddle attachment, beat the room-temperature butter on medium speed until creamy and smooth. Gradually add powdered sugar, beating well after each addition to avoid lumps. Slowly mix in the heavy cream to achieve a rich but spreadable consistency. Next, stir in the peppermint extract and green food coloring until the color is even. Finally, gently fold in the chopped dark chocolate chips for that signature mint chocolate chip texture.

Step 6: Frost Your Cake

Once the cake has cooled completely, spread your luscious mint frosting evenly over the top. Use the back of a spoon to create whimsical swirls for a homemade touch that’s as pretty as it is delicious. Now your Mint Chocolate Chip Sheet Cake Recipe is ready to wow!

How to Serve Mint Chocolate Chip Sheet Cake Recipe

A close-up view of five square pieces of dark brown chocolate cake arranged on white parchment paper over a baking rack. Each cake piece has a thick, pale green frosting layer spread unevenly on top, showing small dark specks within the creamy texture. The cakes have a moist, dense appearance with the frosting looking smooth and rich. The background is a white marbled texture. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Add a little something extra by sprinkling mini chocolate chips or fresh mint leaves on top just before serving. These small touches bring a beautiful contrast and hint at the flavors inside.

Side Dishes

This cake pairs wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream. For a more grown-up pairing, a cup of rich coffee or a mint-infused hot chocolate complements the mint and chocolate flavors perfectly.

Creative Ways to Present

Consider cutting the cake into small squares for an elegant dessert platter, or serve it alongside fresh berries for a pop of color and natural sweetness. You can even dust the top with cocoa powder or edible glitter to make your Mint Chocolate Chip Sheet Cake Recipe truly shine at parties.

Make Ahead and Storage

Storing Leftovers

Once frosted, cover the cake tightly with plastic wrap or keep it in an airtight container. Stored at room temperature, it will stay fresh for up to two days. For longer storage, refrigeration is best and will keep it moist for up to five days.

Freezing

You can freeze this sheet cake after baking but before frosting. Wrap it tightly in plastic wrap and then foil to prevent freezer burn. Frozen cake will keep well for up to three months. Thaw completely at room temperature before frosting and serving.

Reheating

If you prefer your cake slightly warm, slice a piece and microwave it for 10–15 seconds. Avoid reheating the entire cake to keep the frosting intact, or enjoy it chilled—the mint flavor really shines when cold.

FAQs

Can I use regular chocolate chips instead of chopped dark chocolate in the frosting?

Absolutely! While chopped dark chocolate adds a bittersweet crunch, regular or semi-sweet chocolate chips will also work wonderfully and complement the mint flavor nicely.

Is peppermint extract necessary in this Mint Chocolate Chip Sheet Cake Recipe?

Yes, peppermint extract is key to giving this cake its signature refreshing mint flavor. However, if you prefer a subtler hint, you can reduce the amount slightly or substitute with mint flavoring.

Can I make this cake gluten-free?

With a gluten-free all-purpose flour blend that measures cup-for-cup like regular flour, you can likely adapt this recipe. Just make sure your baking powder and other ingredients are gluten-free as well.

What if I don’t have green food coloring?

The green tint is purely decorative. If you don’t have green food coloring, you can skip it—the frosting will still taste amazing and look lovely with the chocolate chips scattered throughout.

Can this cake be made into cupcakes instead of a sheet cake?

Yes! Simply divide the batter into lined cupcake tins and bake for about 18–22 minutes. Adjust frosting amounts accordingly. Cupcakes make a fun and portable way to enjoy this minty chocolate treat.

Final Thoughts

This Mint Chocolate Chip Sheet Cake Recipe is a total crowd-pleaser that combines classic chocolate indulgence with a refreshing twist of mint. Whether you’re baking for a special occasion or just because, it’s a treat that feels festive and comforting all at once. Give it a try—you’ll be amazed at how easy it is to make something so tasty and impressive. I promise, once you take a bite, it’ll become a new favorite for every celebration and cozy night in.