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Strawberry Rhubarb Crisp with Oatmeal Topping (Spring Dessert)

7 Powerful Secrets for the BEST Green Velvet Bundt Cake with Mint Buttercream (St. Patrick’s Day)

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This Green Velvet Bundt Cake with Mint Buttercream (St. Patrick’s Day) is the ultimate festive dessert centerpiece. Featuring a moist, tender green velvet crumb with a subtle cocoa undertone and topped with silky, refreshing mint buttercream, this cake delivers bakery-quality flavor and texture. Perfect for St. Patrick’s Day parties, holiday gatherings, or spring celebrations, this vibrant Bundt cake is easy to make, beautifully structured, and guaranteed to impress. If you’re looking for a show-stopping St. Patrick’s Day dessert that tastes as incredible as it looks, this Green Velvet Bundt Cake with Mint Buttercream (St. Patrick’s Day) is the one.

  • Total Time: 1 hour 10 minutes
  • Yield: 12 servings

Ingredients

Scale

For the Green Velvet Bundt Cake:

2 ½ cups (315g) all-purpose flour
2 tablespoons unsweetened cocoa powder
1 teaspoon baking soda
½ teaspoon baking powder
½ teaspoon fine sea salt
1 cup (225g) unsalted butter, softened
½ cup (120ml) vegetable oil
1 ¾ cups (350g) granulated sugar
4 large eggs, room temperature
1 tablespoon pure vanilla extract
1 teaspoon white vinegar
1 cup (240ml) buttermilk, room temperature
1 tablespoon green gel food coloring

For the Mint Buttercream:

1 ½ cups (340g) unsalted butter, softened
4 ½ cups (540g) powdered sugar, sifted
2–3 tablespoons heavy cream
1 teaspoon peppermint extract
Pinch of salt
Optional: small drop green gel food colorin

Instructions

  • Preheat oven to 350°F (175°C). Grease and flour a 10–12 cup Bundt pan thoroughly.

  • In a bowl, sift together flour, cocoa powder, baking soda, baking powder, and salt. Set aside.

  • In a large mixing bowl, beat butter and oil until smooth and creamy, about 3–4 minutes.

  • Gradually add sugar and beat until light and fluffy.

  • Add eggs one at a time, mixing well after each addition. Stir in vanilla extract and vinegar.

  • Add dry ingredients in three additions, alternating with buttermilk. Begin and end with dry ingredients. Mix just until combined.

  • Fold in green gel food coloring until evenly incorporated. Batter should be vibrant green and smooth.

  • Pour batter into prepared Bundt pan and smooth the top.

  • Bake for 45–55 minutes or until a toothpick inserted comes out with moist crumbs.

  • Cool in pan for 15 minutes, then invert onto wire rack and cool completely.

  • For the mint buttercream, beat butter until creamy. Gradually add powdered sugar. Mix in peppermint extract, salt, and heavy cream. Beat until light and fluffy.

 

  • Once cake is fully cooled, spoon or pipe mint buttercream over the top. Allow frosting to cascade naturally over the sides.

Notes

Use gel food coloring for vibrant color without thinning the batter.
Do not overmix the batter to maintain a tender velvet crumb.
Ensure cake is completely cooled before frosting.
Adjust peppermint extract carefully; too much can overpower the cake.

  • Author: SOFIA
  • Prep Time: 20 minutes
  • Cook Time: 50 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: Baking