Easy Oreo Petit Fours (Made with Cake Mix)

Turn a simple chocolate cake mix into elegant Oreo Petit Fours! These bite-sized desserts feature chocolate cake, creamy filling, and a rich chocolate coating—perfect for tea parties, weddings, showers, and special occasions.

If you love Oreos and elegant bite-sized desserts, these Oreo Petit Fours are about to become your new favorite treat.

Imagine tender chocolate cake layered with a creamy vanilla filling, cut into perfect little rounds, and coated in a rich chocolate shell. They're everything you love about cookies and cream—but dressed up for a tea party, bridal shower, dessert table, or special occasion.

The best part? They start with a simple boxed cake mix.

These petite treats are surprisingly easy to make and absolutely stunning when displayed on a cake stand. Whether you're hosting a party or simply looking for a fun baking project, these Oreo-inspired petit fours are guaranteed to steal the show.

Perfect for a Crowd

I took these to my Lunch Bunch small group from church, a group made up of mostly senior citizens. I wasn't sure how they would be received but let's just say I came home with an empty container! In fact, the group's members reached for to-go containers from the restaurant to haul off their goodies. (That makes my heart so happy!)

I knew that folks loved my original cake-mix petit fours (the strawberry lemonade version) but I wasn't sure how they would respond to these. Turned out, they loved them!

You're going to flip over this delicious (fancy!) dessert, too!

What Are Oreo Petit Fours?

Traditional petit fours are small layered cakes coated in a sweet icing or poured fondant.

This Oreo-inspired version takes a slightly different approach. Soft chocolate cake layers are sandwiched together with a creamy vanilla filling, cut into rounds, then coated in a smooth chocolate shell for a cookies-and-cream-inspired dessert that's both elegant and fun.

Ingredients You'll Need

You will find a full, printable recipe card at the bottom of this post, as always, but here's a peek at what you're going to need to make these cake mix petit fours. You might already have some of these ingredients in your kitchen already.

For the Cake

• Chocolate cake mix
• Eggs
• Oil
• Water
• Optional: sour cream or pudding mix for extra richness

For the Filling

• Butter
• Powdered sugar
• Vanilla extract
• Pinch of salt
• Optional: shortening for a more Oreo-style filling

For the Coating

• *Chocolate almond bark or chocolate chips
• neutral oil to thin chocolate
• Optional white chocolate for drizzling

Note: I used semi-sweet chocolate to coat the petit fours but next time I plan to mix in some milk chocolate so it's not as strong.

Garnish Ideas

• Crushed Oreo crumbs
• White chocolate drizzle
• Mini Oreo pieces
• White sprinkles
• Chocolate curls

How to Make Oreo Petit Fours

These sound (and look) fancy, but they're actually pretty straightforward. Here's how you're going to make them.

Step One: Bake the Cake Layers

Prepare the chocolate cake batter according to the recipe card below and bake in a 9x13-inch pan. Allow the cake to cool completely, then refrigerate until chilled. A cold cake is much easier to cut cleanly and handle during assembly.

Step Two: Cut the Cake Rounds

My cake baked a bit thicker than expected, so I leveled it before cutting the rounds. Once leveled, use a round cookie cutter, cut circles from the chilled cake. Pair the rounds according to size so they'll stack neatly. Set aside.

Step Three: Prepare the Filling

Make the Oreo filling and transfer it to a piping bag. This will make assembly quick and easy. Cut the end of the bag wide enough for any chunks or Oreo to come through.

Step Four: Assemble the Petit Fours

Pipe a generous swirl of filling onto half of the cake rounds. Top with the remaining rounds, gently pressing them into place to create miniature sandwich cakes.

Step Five: Freeze Until Firm

Place the assembled cakes on a parchment-lined baking sheet and freeze for 30 to 60 minutes. This step is important because it helps the cakes hold their shape during dipping.

Step Six: Prepare the Chocolate Coating

Melt the chocolate and oil, stirring until smooth and glossy.

Step Seven: Coat the Petit Fours

Working one at a time, dip each frozen cake into the melted chocolate. Use a fork or dipping tool to lift it out, allowing excess chocolate to drip away before placing it on parchment paper.

Step Eight: Decorate and Serve

Before the coating sets, drizzle with white chocolate and sprinkle with crushed Oreo crumbs, if desired. Allow the coating to harden completely before serving.

Plate to serve

I happened to have a macaron stand left over from my granddaughter's recent graduation party and thought it would be fun to put the petit fours on that. Gorgeous!

You don't have to go fancy. Any platter or plate will do!

Variations

There are so many fun and exciting ways to mix things up! Here are some of my favorite suggestions:

Golden Oreo Petit Fours

Use white cake and a vanilla coating.

Mint Oreo Petit Fours

Add peppermint extract to the filling.

Cookies and Cream Petit Fours

Mix crushed Oreos directly into the filling.

Birthday Cake Oreo Petit Fours

Use funfetti cake and colorful sprinkles.

White Almond Petit Fours

Simple and delicious! White cake with almond extract. Yum.

Strawberry Oreo Petit Fours

Strawberry cake dipped in light pink almond bark? A true crowd pleaser!

Lemon Oreo Petit Fours

Lemon cake mix topped with the palest of yellow coatings, then decorated? Yes, please!

Frequently Asked Questions

Can I make these ahead of time?

Absolutely. In fact, petit fours are often easier to make ahead because freezing helps with the coating process.

Do they need refrigeration?

They can sit out for several hours, but store leftovers in the refrigerator.

Can I freeze Oreo Petit Fours?

Yes. Freeze in an airtight container for up to two months.

Can I use store-bought frosting?

You can, but a homemade filling will give the best flavor and texture.

More Bite-Sized Desserts You'll Love

If you love elegant little desserts, be sure to try some of these reader favorites. They're perfect for tea parties, dessert tables, showers, and special occasions.

• Simple Cake Mix Petit Fours – My original strawberry lemonade petit fours that inspired this Oreo version.
• Easy Cake Mix Madeleines – Delicate French tea cakes made simple with a boxed cake mix.
• Easy French Macarons for Beginners – Colorful sandwich cookies that look impressive on any dessert table.
• Strawberry Cake Pops – Fun, festive treats perfect for parties and celebrations.
• Lemon Oreo Truffles – Creamy, citrusy bite-sized desserts coated in white chocolate.
• Mini Cheesecake Bites – Rich, creamy mini desserts that are always a crowd-pleaser.

Perfect for Parties and Special Occasions

Looking for the perfect place to serve these Oreo Petit Fours? They're right at home on elegant dessert tables and celebration spreads.

• Tea Party Desserts
• Bridal Shower Dessert Ideas
• Baby Shower Dessert Ideas
• Wedding Dessert Table Ideas
• Graduation Party Desserts
• Birthday Party Treats
• Mini Desserts for Entertaining
• Elegant Desserts for Special Occasions

Final Thoughts

These Oreo Petit Fours combine the elegance of a traditional petit four with the beloved flavors of cookies and cream. They're rich, beautiful, and surprisingly simple to make. If you're looking for a show-stopping dessert that starts with a cake mix, this is one recipe you'll want to keep on repeat.

Thanks for stopping by! If you make these delicious Oreo Petit Fours and love them please leave a comment or review. Before you go, why not pin some photos to your Pinterest boards?