Easy Appalachian Fudge Brownie Pie Recipe
Introduction
This Easy Appalachian Fudge Brownie Pie is a decadent treat combining rich brownie, gooey marshmallows, and a silky chocolate frosting. It’s simple to make and perfect for sharing at any gathering or just indulging at home.

Ingredients
- 16-18 ounces brownie mix (with or without nuts)
- 0.25 cup water
- 0.33 cup vegetable oil
- 2 large eggs
- 2 cups mini marshmallows
- 0.25 cup unsalted butter (melted)
- 0.25 cup unsweetened cocoa powder
- 0.375 cup milk (¼ cup plus 2 tablespoons), divided
- 1 cup powdered sugar
Instructions
- Step 1: Preheat your oven to 350°F (175°C) and lightly grease a 10-inch springform pan for easy serving.
- Step 2: In a large bowl, combine the brownie mix, water, vegetable oil, and eggs. Stir gently by hand about 50 times until larger lumps disappear. Avoid overmixing.
- Step 3: Pour the batter into the prepared pan and bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
- Step 4: Remove the pan from the oven and evenly sprinkle mini marshmallows over the warm brownie. Return to the oven for 4–5 minutes until marshmallows puff and melt.
- Step 5: While marshmallows melt, sift together cocoa powder and powdered sugar into a small bowl. Add melted butter and ¼ cup milk, then beat with an electric mixer until smooth. Add remaining 2 tablespoons milk one at a time if frosting is too thick, until pourable.
- Step 6: Remove the pan again and spoon the chocolate frosting over the melted marshmallows, spreading evenly over the surface.
- Step 7: Allow the pie to cool completely. Run a knife around the edges and remove the springform pan side. Slice and enjoy your delicious dessert!
Tips & Variations
- Use a mix with nuts if you like added texture, or nut-free for a smoother bite.
- For extra flavor, add a teaspoon of vanilla extract to the brownie batter.
- Try stirring chopped nuts or chocolate chips into the batter before baking for more richness.
- If you don’t have a springform pan, a well-greased regular pie pan works fine but may be harder to slice perfectly.
Storage
Store leftover brownie pie in an airtight container in the refrigerator for up to 3 days. For best texture, allow it to come to room temperature before serving. Reheat briefly in the microwave if you prefer it warm, but avoid melting the marshmallow topping.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use homemade brownie batter instead of a mix?
Yes, homemade brownie batter works well. Just prepare about 16-18 ounces worth and follow the same baking instructions.
What if I don’t have mini marshmallows?
You can chop regular marshmallows into smaller pieces as a substitute, but mini marshmallows melt more evenly and create a better topping texture.
PrintEasy Appalachian Fudge Brownie Pie Recipe
This Easy Appalachian Fudge Brownie Pie is a rich and decadent dessert combining a fudgy brownie base with a gooey marshmallow topping and a silky homemade chocolate frosting. Perfectly baked in a springform pan, this indulgent pie offers a delightful mix of textures and intense chocolate flavor, making it an excellent choice for celebrations or any time you crave a comforting sweet treat.
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Total Time: 50 minutes
- Yield: 8–10 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Brownie Base
- 16–18 ounces brownie mix (with or without nuts)
- 0.25 cup water
- 0.33 cup vegetable oil
- 2 large eggs
Marshmallow Topping
- 2 cups mini marshmallows
Chocolate Frosting
- 0.25 cup unsalted butter (melted)
- 0.25 cup unsweetened cocoa powder
- 0.375 cup milk (¼ cup plus 2 tablespoons), divided
- 1 cup powdered sugar
Instructions
- Get Ready to Bake! First, preheat your oven to 350°F (175°C). Lightly grease a 10-inch springform pan to ensure easy removal and serving of the pie later on.
- Whip Up the Brownie Base. In a large mixing bowl, combine the brownie mix, water, vegetable oil, and eggs. Stir gently by hand for approximately 50 strokes, just until the larger lumps disappear. Avoid overmixing to keep the texture light and moist.
- Bake to Perfection. Pour the brownie batter into the prepared pan and bake in the preheated oven for 30-35 minutes. Test with a toothpick inserted in the center; it should come out clean when done.
- Add the Gooey Marshmallow Layer. Remove the pan from the oven once the brownies are baked. Sprinkle 2 cups of mini marshmallows evenly over the warm brownies. Return to oven for 4-5 minutes until marshmallows puff up and become melty.
- Craft the Silky Frosting. While marshmallows are melting, sift cocoa powder and powdered sugar together in a small bowl. Add the melted butter and ¼ cup of milk, then beat with an electric mixer until smooth. If the frosting is too thick, add remaining 2 tablespoons of milk gradually to achieve a pourable consistency without it being watery.
- Crown Your Pie! Remove the pan from the oven again and gently spoon the chocolate frosting over the melted marshmallows. Spread evenly with a spoon to cover the entire surface of the pie.
- Cool, Slice, and Enjoy! Allow the pie to cool completely to set. Once chilled, run a knife along the edges and carefully remove the springform pan’s side. Slice into generous portions and enjoy this rich, comforting dessert.
Notes
- Use a springform pan for easy removal and neat presentation.
- The brownie mix can be any brand, with or without nuts according to preference.
- Be careful not to overmix the brownie batter to maintain a tender crumb.
- Watch the marshmallows closely when melting to prevent burning.
- The frosting’s thickness can be adjusted with milk to get the perfect pourable texture.
- This dessert is best served after cooling completely for clean slices.
Keywords: Appalachian fudge brownie pie, brownie dessert, marshmallow topping, chocolate frosting, easy brownie pie, springform pan dessert

