If you’re looking for a dessert that feels festive but doesn’t take hours to make, these Festive Fall Blondies are just what you need. They’re loaded with M&Ms, chopped Oreos, and colorful fall sprinkles, giving you a chewy, chocolatey bar that’s as pretty as it is delicious.
These blondies are the kind of treat that works for everything from family gatherings to holiday potlucks. They fit right in with other fall-themed desserts and make a great option if you’re in need of simple Thanksgiving desserts that everyone will love.
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Ingredients for Festive Fall Blondies
When it comes to fun fall desserts, it doesn’t get easier than these blondies. The ingredients are simple pantry staples, plus a few festive mix-ins to make them pop. Here’s what you’ll need:

- 1 cup (2 sticks) unsalted butter, melted and slightly cooled
- 1 1/2 cups light brown sugar, packed
- 2 large eggs
- 2 tsp vanilla extract
- 2 cups all-purpose flour
- 1 tsp baking powder
- 1/4 tsp salt
- 1 1/2 cups fall colored M&M’s (I mostly just picked out the blue ones and left the others in)
- 1/2 cup Fall-themed sprinkles
- 10 Oreos, roughly chopped
How to Make Festive Fall Blondies
1. Prep the pan: Preheat your oven to 350°F. Line a 9×13-inch baking pan with parchment paper or lightly grease it.
2. Mix the wet ingredients: In a large bowl, whisk together the melted butter and brown sugar until smooth. Add the eggs and vanilla, whisking until well combined.
3. Add the dry ingredients: Stir in the flour, baking powder, and salt until just combined. Don’t over mix, as this keeps the blondies soft and chewy.
4. Fold in the mix-ins: Gently stir in most of the M&Ms, chopped Oreos, and sprinkles, leaving some aside for the top. Spread the batter evenly in the prepared pan.
5. Bake in two stages: Bake for about 15 minutes, then quickly sprinkle the reserved toppings evenly over the partially baked blondies. Return the pan to the oven and continue baking for another 10–15 minutes, or until the edges are golden and a toothpick inserted in the center comes out mostly clean.
6. Cool and slice: Let the blondies cool completely in the pan before cutting into squares.
Pro Tips for the Best Blondies
- Bake in two stages for pretty tops: Sprinkle the reserved M&Ms, Oreos, and sprinkles onto the blondies halfway through baking instead of right at the start. This keeps them from sinking and makes the tops look extra festive and pretty.
- Make sure your butter’s not too hot: If your melted butter is still hot when you add in the eggs for this recipe, you could end up with scrambled eggs in your blondies. Make sure your butter has cooled down before adding any eggs.
- Switch up the mix-ins: Use Reese’s Pieces, chopped candy bars, or white chocolate chips if you want a twist on these fun fall desserts.
- For extra flair: Drizzle the cooled blondies with melted chocolate or caramel sauce before serving.
- Don’t skip cooling time: Blondies slice best when fully cooled. If you try to cut too soon, they may fall apart.

FAQs
Can I make these ahead of time?
Yes! These blondies keep well in an airtight container at room temperature for 3–4 days, making them great for holiday prep.
Do I have to use Oreos?
Nope! You can skip them or swap in another cookie you love. Graham crackers, Biscoff cookies, or even gingersnaps would taste amazing and be perfect for fall.
Can I freeze blondies?
Definitely. Cut them into squares, wrap them tightly, and freeze for up to 2 months. Just thaw at room temperature before serving.
Can I bake these in an 8×8 or 9×9 pan?
You can! A smaller pan will work, but you’ll need to extend the bake time quite a bit. Just keep in mind that in order to make sure the middle is baked through, your edges will have to get kind of crispy with a smaller pan. With a 9×13 pan, the blondies bake up more evenly with a smooth, soft texture all the way through.
These Festive Fall Blondies are the kind of treat that makes seasonal baking simple and fun. With chewy centers, plenty of chocolate, and colorful toppings, they’re perfect for sharing at family gatherings, potlucks, or even just a cozy night at home. If you’re looking for fall-themed desserts that double as simple Thanksgiving desserts, this easy recipe is sure to become a new favorite.

Festive Fall Blondie
Ingredients
- 1 cup (2 sticks) unsalted butter melted and cooled slightly
- 1 1/2 cups brown sugar packed
- 2 eggs
- 2 tsp vanilla
- 2 cups flour
- 1 tsp baking powder
- 1/4 tsp salt
- 1 1/2 cups fall-colored M&M's I mostly just picked out the blue ones
- 1/2 cup fall-themed sprinkles
- 10 Oreos roughly chopped
Instructions
- Preheat your oven to 350°F. Line a 9x13-inch baking pan with parchment paper or lightly grease it.
- In a large bowl, whisk together the melted butter and brown sugar until smooth. Add the eggs and vanilla, whisking until well combined.
- Stir in the flour, baking powder, and salt until just combined. Don’t over mix, as this this keeps the blondies soft and chewy
- Gently fold in most of the M&Ms, chopped Oreos, and sprinkles, leaving some aside for the top. Spread the batter evenly in the prepared pan.
- Bake for about 15 minutes, then quickly sprinkle the reserved M&Ms, Oreos and sprinkles evenly over the partially baked blondies.
- Return the pan to the oven and continue baking for another 10–15 minutes, or until the edges are golden and a toothpick inserted in the center comes out mostly clean.
- Let the blondies cool completely in the pan before cutting into square







