These ube marshmallow blondies are soft, chewy, and packed with rich purple yam flavor in every bite. Made with ube extract and ube halaya, these vibrant blondie bars have a buttery texture and a gooey, caramelized marshmallow topping that melts beautifully into the surface.

If you’re looking for an easy ube dessert recipe that stands out, these blondies deliver both flavor and visual appeal. The combination of chewy edges, a soft center, and melted marshmallow pockets makes them perfect for sharing, baking for a crowd, or creating a bakery-style treat at home.

💜 Why You’ll Love This Ube Marshmallow Blondies Recipe

Soft and Chewy Texture

These ube marshmallow blondies bake up with perfectly chewy edges and a soft, dense center. The texture is rich and satisfying without being cakey, giving you that classic blondie consistency.

Gooey Marshmallow Topping

The marshmallows melt into the top as they bake, creating a glossy, caramelized layer with gooey pockets throughout. This adds both texture and sweetness to every bite.

Beautiful Vibrant Purple Color

Thanks to ube extract and ube halaya, these blondies have a naturally eye-catching purple color that makes them stand out. They are perfect for photos, parties, and unique dessert spreads.

Easy and Beginner-Friendly

This recipe uses simple ingredients and straightforward steps, making it approachable even if you are new to baking. No complicated techniques are needed to get great results.

Perfect for Any Occasion

Whether you are baking for a gathering, holiday, or just a weekend treat, these ube marshmallow blondies are a fun and flavorful dessert that feels both special and easy to make.

💜 Ingredient Notes for Ube Marshmallow Blondies

Ube Extract

Ube extract gives these blondies their signature purple color and sweet, nutty flavor. Use a high-quality extract for the most vibrant color and balanced taste. Some brands are stronger than others, so adjust slightly if needed.

Ube Halaya

Using thick ube halaya adds depth and richness to the blondies. It enhances the natural purple yam flavor and creates a more authentic ube dessert. Avoid runny versions, as they can add too much moisture.

Butter

Melted butter creates a rich, chewy texture and helps form the dense structure typical of blondies. Unsalted butter is recommended so you can control the salt level in the recipe.

Granulated Sugar and Brown Sugar

A combination of granulated sugar and brown sugar gives the blondies the perfect balance of sweetness and moisture. Brown sugar adds a subtle caramel note and helps keep the texture soft and chewy.

All-Purpose Flour

All-purpose flour provides structure to the blondies. For best results, spoon and level the flour instead of scooping directly from the bag to avoid dense or dry bars.

Marshmallows

Chopped marshmallows melt during baking to create gooey pockets and a lightly caramelized topping. They add sweetness and texture, making these blondies extra indulgent.

White Chocolate Chips (Optional)

White chocolate chips add creamy sweetness and pair well with the ube flavor. They are optional but enhance the overall richness of the blondies.

Vanilla Extract

A small amount of vanilla extract rounds out the flavor and complements the ube, adding warmth and depth to the blondie base.

Salt

Salt balances the sweetness and enhances all the flavors in the blondies. Even a small amount makes a noticeable difference in the final taste.

💜 How to Make Ube Marshmallow Blondies

1. Preheat the Oven and Prepare the Pan

Preheat your oven to 350°F. Line an 8×8-inch baking pan with parchment paper so the ube marshmallow blondies are easy to remove and slice after baking.

2. Whisk the Butter, Sugars, and Ube Halaya

In a large mixing bowl, whisk together the melted butter, granulated sugar, brown sugar, and ube halaya until smooth and glossy. This helps create the rich blondie base and evenly distributes the ube flavor.

3. Add the Egg and Flavorings

Whisk in the egg, ube extract, and vanilla extract until fully combined. The mixture should look thick, smooth, and vibrant purple.

4. Fold in the Dry Ingredients

Add the all-purpose flour and salt, then gently fold until no dry streaks remain. Be careful not to overmix, since that can make the blondies less tender and chewy.

5. Stir in the Marshmallows and White Chocolate

Fold in the chopped marshmallows and white chocolate chips if using. The batter will be thick, which is exactly what you want for soft, dense ube blondies.

6. Spread the Batter into the Pan

Transfer the batter to the prepared pan and spread it into an even layer. Add a few extra marshmallow pieces on top if you want more gooey marshmallow topping and a more bakery-style finish.

7. Bake Until the Center Is Slightly Soft

Bake for 23 to 27 minutes, or until the edges are set and the center still looks slightly soft and glossy. Do not overbake, because the blondies will continue to set as they cool.

8. Cool Completely Before Slicing

Let the blondies cool in the pan for at least 1 hour before slicing. For neat, clean edges, chill them briefly before cutting into squares.

💜 Pro Tips for the Best Ube Marshmallow Blondies

Use Thick Ube Halaya

Choose a thick ube halaya rather than a loose or runny one. This gives the blondies a richer purple yam flavor without adding too much moisture to the batter.

Spoon and Level the Flour

For soft and chewy blondies, spoon the flour into your measuring cup and level it off with a knife. Scooping directly from the bag can pack in too much flour and make the bars dry or dense.

Do Not Overmix the Batter

Once the flour is added, fold the batter just until combined. Overmixing can make ube marshmallow blondies tougher instead of soft and tender.

Use Room Temperature Egg

A room temperature egg blends more smoothly into the batter and helps create an even texture throughout the blondies.

Press Extra Marshmallows on Top

If you want a more dramatic gooey topping, press a few extra chopped marshmallows onto the surface before baking. This creates a bakery-style finish with more caramelized marshmallow on top.

Do Not Overbake

For the best texture, remove the blondies when the edges are set and the center still looks slightly soft and glossy. They will continue to firm up as they cool, which keeps the center soft and chewy.

Cool Before Slicing

Let the blondies cool fully before cutting so they hold their shape. For especially clean edges, chill them briefly before slicing.

Use White Chocolate Chips Sparingly

White chocolate chips pair well with ube, but too much can overpower the purple yam flavor. A smaller amount keeps the blondies sweet while still letting the ube stand out.

💜 Variations for Ube Marshmallow Blondies

Ube Cream Cheese Blondies

Swirl sweetened cream cheese into the batter before baking for a rich, tangy contrast. This adds a cheesecake-like layer that pairs beautifully with the ube flavor.

Ube Coconut Blondies

Fold in shredded coconut for a tropical twist. Coconut enhances the natural flavor of ube and adds a subtle chew to the blondies.

Ube S’mores Blondies

Add crushed graham crackers to the batter or sprinkle them on top before baking. This creates a s’mores-inspired version with extra texture and a hint of toasted flavor.

Ube Oreo Blondies

Mix in chopped chocolate sandwich cookies for a cookies-and-cream version. The chocolate flavor pairs well with the sweet, nutty taste of ube.

Extra Gooey Marshmallow Blondies

Increase the amount of marshmallows slightly and press more onto the top before baking for an even more gooey and caramelized finish.

Nutty Ube Blondies

Add chopped macadamia nuts, cashews, or almonds for a crunchy texture that balances the soft and chewy blondie base.

Ube White Chocolate Chip Blondies

Double the white chocolate chips for a sweeter, more indulgent version. This variation is perfect if you enjoy richer dessert bars.

Gluten-Free Ube Blondies

Substitute the all-purpose flour with a 1:1 gluten-free baking flour blend. This allows you to enjoy the same chewy texture while making the recipe gluten-free.

💜 Storage and Make-Ahead Tips for Ube Marshmallow Blondies

How to Store at Room Temperature

Store ube marshmallow blondies in an airtight container at room temperature for up to 3 days. Keep them in a cool, dry place to maintain their soft and chewy texture.

Refrigerator Storage

For longer storage, place the blondies in an airtight container and refrigerate for up to 5 days. Let them come to room temperature or warm slightly before serving for the best texture.

Freezing Instructions

Ube marshmallow blondies freeze well for up to 2 months. Wrap each piece individually in plastic wrap, then place them in a freezer-safe bag or container. Thaw at room temperature before serving.

Make-Ahead Tips

You can bake these blondies a day in advance and store them covered at room temperature. The flavor develops slightly over time, and the texture remains soft and chewy.

How to Reheat for a Fresh-Baked Texture

Warm individual blondies in the microwave for about 10–15 seconds to bring back the gooey marshmallow texture and soft interior.

💜 Ube Marshmallow Blondies FAQ

What does ube taste like?

Ube has a naturally sweet, slightly nutty flavor with hints of vanilla. It is mild but unique, which makes it perfect for desserts like ube marshmallow blondies.

Can I make ube marshmallow blondies without ube halaya?

Yes, you can make the recipe using only ube extract, but the flavor will be lighter. Using both extract and ube halaya gives the best depth and a more authentic ube dessert taste.

Why did my blondies turn out dry?

Dry blondies are usually caused by too much flour or overbaking. Make sure to spoon and level the flour and remove the blondies when the center still looks slightly soft.

Why are my blondies too gooey or underbaked?

If the blondies seem too wet, they may need a few more minutes in the oven or more time to cool. They continue to set as they cool, so avoid cutting them too early.

Can I use mini marshmallows instead of chopped marshmallows?

Yes, mini marshmallows can be used, but chopped marshmallows tend to create better gooey pockets and more even distribution throughout the blondies.

How do I get clean slices?

Allow the blondies to cool completely before slicing. For extra clean edges, chill them briefly and use a sharp knife wiped clean between cuts.

Can I double this recipe?

Yes, you can double the recipe and bake it in a 9×13-inch pan. The baking time may need to be slightly increased, so watch for set edges and a soft center.

Do I need to refrigerate ube marshmallow blondies?

Refrigeration is not required for short-term storage. They can be kept at room temperature for a few days, but refrigeration helps extend freshness.

💜 More Blondie Recipes You’ll Love

If you love these ube marshmallow blondies, here are more unique and bakery-style blondie recipes to try next. These variations are perfect for exploring new flavors while keeping that same soft and chewy texture.

Cotton Candy Marshmallow Blondies

Cotton Candy Marshmallow Blondies are a fun and colorful twist with a sweet, nostalgic flavor and gooey marshmallow texture similar to this recipe.

Pistachio Cream Blondies

Pistachio Cream Blondies are rich, nutty, and filled with smooth pistachio flavor, making them a great alternative if you enjoy unique dessert bars.

Banana Pudding Blondies

Banana Pudding Blondies combine soft blondies with creamy banana flavor for a comforting, dessert-inspired twist.

Brown Butter Apple Pie Blondies

Brown Butter Apple Pie Blondies feature warm spices and rich brown butter flavor, perfect for a cozy and seasonal dessert option.

Birthday Cake Vanilla Brownies

Birthday Cake Vanilla Brownies are colorful, fun, and packed with vanilla flavor, making them a great celebratory treat with a similar soft texture.