These Mint Chocolate Chip Fudge Squares combine three decadent layers in one irresistible treat: a chewy brownie base, a layer of edible mint chocolate chip cookie dough, and a rich mint-flavored fudge topping. Each bite delivers a cool minty flavor, gooey texture, and just the right amount of sweetness — perfect for the holiday season or year-round indulgence.

Why You’ll Love This Recipe

This layered dessert is the ultimate for mint chocolate lovers. The brownie layer adds richness, the cookie dough brings nostalgic texture, and the mint fudge topping ties everything together with a smooth, creamy finish. These squares are visually striking and make an impressive addition to dessert trays, potlucks, or gifting boxes.

ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

Brownie layer:

unsalted butter
granulated sugar
cocoa powder
eggs
vanilla extract
all-purpose flour
salt

Mint cookie dough layer:

unsalted butter (softened)
light brown sugar
granulated sugar
milk
vanilla extract
peppermint extract
all-purpose flour (heat-treated for safety)
mini chocolate chips
green food coloring (optional)

Mint fudge topping:

white chocolate chips or chopped white chocolate
sweetened condensed milk
peppermint extract
green food coloring
mini chocolate chips (for garnish)

directions

Make the brownie layer:
- Preheat oven to 350°F (175°C). Line an 8×8-inch (20×20 cm) square pan with parchment paper, leaving an overhang.
- In a saucepan, melt butter over medium heat. Stir in sugar and cocoa powder until smooth. Remove from heat and whisk in eggs and vanilla.
- Fold in flour and salt until just combined. Spread into prepared pan and bake for 20–22 minutes, or until a toothpick inserted comes out mostly clean. Let cool completely.
Make the mint cookie dough layer:
- In a mixing bowl, cream butter, brown sugar, and granulated sugar. Add milk, vanilla, and peppermint extract.
- Gradually mix in heat-treated flour (see FAQ for safety tip) until a soft dough forms. Add food coloring if using. Fold in mini chocolate chips.
- Spread evenly over the cooled brownie layer. Use a spatula to press gently and smooth the surface. Chill for 30 minutes.
Make the fudge topping:
- In a saucepan over low heat, combine white chocolate and sweetened condensed milk. Stir until melted and smooth.
- Add peppermint extract and green food coloring to desired shade.
- Pour over the cookie dough layer, smoothing the top. Sprinkle with more mini chocolate chips.
- Chill for at least 2 hours, or until completely set. Lift from pan, slice into squares, and serve.

Servings and timing

Makes approximately 16–20 squares.

Prep time: 30 minutes
Bake time (brownie layer): 20 minutes
Chill/set time: 2–3 hours
Total time: ~3.5 hours including chilling

Variations

Use dark chocolate chips in the cookie dough for a richer flavor.
Replace the brownie base with a cookie crust (e.g., crushed Oreos mixed with melted butter).
Swirl in a layer of ganache between the cookie dough and fudge for extra indulgence.
Omit food coloring for a more natural appearance.

storage/reheating

Store in an airtight container in the refrigerator for up to 5 days. These are best served chilled or at room temperature — no reheating required. You can also freeze them (individually wrapped) for up to 2 months.

FAQs

Can I use store-bought brownie mix?

Yes. Use your favorite boxed mix and bake according to package directions in an 8×8-inch pan.

What does “heat-treated flour” mean?

Flour should be heated to 165°F (74°C) to eliminate bacteria if it will be consumed raw. Spread flour on a baking sheet and bake at 300°F (150°C) for 5–7 minutes.

Is the cookie dough layer safe to eat?

Yes — since it contains no eggs and uses heat-treated flour, it’s safe and meant to be enjoyed raw.

Can I skip the mint flavor?

Yes. You can use vanilla instead of peppermint extract for a non-mint version of this dessert.

Do I have to use food coloring?

No. The coloring is optional and only adds a festive visual element.

Why isn’t my fudge layer setting?

Ensure you’re using sweetened condensed milk (not evaporated milk), and allow enough chilling time for the fudge to firm completely.

Can I use a different chocolate for the top layer?

Yes — milk or dark chocolate can be used, but you’ll lose the mint chocolate chip look unless you keep the green coloring.

How do I get clean cuts when slicing?

Chill thoroughly and use a sharp knife. For best results, wipe the knife clean between cuts and optionally dip in warm water before slicing.

What type of pan works best?

An 8×8-inch metal or glass baking dish works well. Line it with parchment for easy removal.

Are these suitable for gifting?

Yes. Once fully chilled and sliced, place squares in mini cupcake liners or parchment inside a festive container.

Conclusion

Mint Chocolate Chip Fudge Squares are the perfect layered dessert for mint and chocolate lovers. With a chewy brownie base, creamy cookie dough center, and luscious mint fudge topping, these treats offer a show-stopping combination of texture and flavor ideal for the holidays or any celebration.