Rich fudgy brownies layered with a creamy mint marshmallow swirl, white chocolate buttercream frosting, and crunchy Mint Oreo cookies. A decadent triple-layer dessert combining chocolate, mint, and cookies-and-cream textures.
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Step 1
Prepare mint swirl
Mix marshmallow fluff with mint extract and green food coloring until light green. Set aside.
Step 2
Make brownie base
Melt chocolate and butter, mix in sugar, eggs, vanilla, and coffee. Fold in flour and crushed Mint Oreos. Spread into a lined 9×13 pan.
Step 3
Swirl layer
Drop spoonfuls of mint mixture over brownie batter and swirl gently with a knife.
Step 4
Bake
Bake at 350°F (175°C) for 23–25 minutes until set. Cool completely.
Step 5
Make topping
Mix butter, powdered sugar, vanilla, milk, melted white chocolate, and remaining mint mixture until smooth and fluffy.
Step 6
Finish
Spread frosting over cooled brownies and top with remaining crushed Mint Oreos. Chill before slicing.
Don’t overbake
Remove brownies when just set to keep them fudgy.
Chill before slicing
Refrigerate for clean layers and sharper cuts.
Extra chocolate version
Add chocolate chips into the brownie batter for a richer texture.
No mint version
Skip mint extract for a classic Oreo brownie instead.
Refrigerator
5 days
Store in airtight container for best texture.
Freezer
2 months
Freeze slices individually wrapped.
Q: Can I use regular Oreos instead of Mint Oreos?
A: Yes, but you will lose the mint flavor and may want to add extra mint extract.
Q: Why is my topping runny?
A: The white chocolate or frosting may be too warm—chill briefly to thicken.
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