These blondies are the kind of dessert you can throw together when you want something sweet without a lot of fuss. Five basic ingredients, one bowl, and about half an hour is all it takes. They’re buttery, chewy, and rich with warm vanilla flavor.
No mixer needed, no complicated techniques. Just straightforward baking that tastes like a treat you actually had time for.
Why This Recipe Works
This recipe keeps things simple and reliable. With only five ingredients, each one has a job: butter for richness, brown sugar for deep caramel notes, egg for structure, flour to hold it together, and vanilla for aroma.
There’s no baking powder or baking soda here, which keeps the texture dense and fudgy instead of cakey. The batter mixes in minutes and bakes evenly in a standard pan. It’s also a blank canvas—add chocolate chips, nuts, or a sprinkle of flaky salt if you want to dress it up.
Storage Instructions
- Room temperature: Store in an airtight container for up to 3 days. Place parchment between layers to prevent sticking.
- Refrigerator: Keeps well for up to 1 week.
Let them come to room temp before serving for the best texture.
- Freezer: Wrap individual squares in plastic, then place in a freezer bag. Freeze for up to 2 months. Thaw at room temperature or warm in the microwave for 10–15 seconds.
Why This is Good for You
“Good for you” can mean a few things here.
These blondies are good for your schedule because they’re quick and consistent. They’re good for your budget because the ingredients are pantry basics. And they’re good for your baking confidence—this recipe is almost foolproof and teaches you how butter, sugar, egg, and flour work together.
If you want to nudge the nutrition, you can use a little less sugar or swap part of the flour with whole wheat pastry flour. But mostly, they’re good because a homemade treat brings comfort without a long to-do list.
Common Mistakes to Avoid
- Overbaking: These blondies should look slightly underdone in the center when you pull them out. They set as they cool.
- Hot butter + cold egg: If the butter is too hot, it can partially cook the egg and affect texture.
Cool the butter and use a room temp egg.
- Overmixing: Once you add flour, fold gently. Overmixing can make the blondies tough.
- Skipping the salt: Even a small pinch balances sweetness and brings out the caramel flavor.
- Using too large a pan: A bigger pan spreads the batter too thin and leads to dry edges. Stick with an 8-inch square.
Alternatives
- Add-ins: Fold in 1/2–3/4 cup chocolate chips, chopped walnuts, pecans, or white chocolate.
A handful of butterscotch chips is classic.
- Brown butter: Brown the butter for a nutty, toffee-like flavor. Let it cool before mixing. This adds depth without changing the ingredients list.
- Gluten-free: Use a 1:1 gluten-free baking flour that includes xanthan gum.
Check doneness a couple minutes early.
- Dairy-free: Swap butter for a neutral, dairy-free butter alternative that’s solid at room temp. Coconut oil works, but will add a light coconut note.
- Less sweet: Reduce brown sugar to 3/4 cup. The bars will be slightly less chewy but still tasty.
- Flavor twists: Add 1/2 teaspoon almond extract, a pinch of cinnamon, or a finishing sprinkle of flaky sea salt right after baking.
Easy 5 Ingredient Blondies – Soft, Chewy, and Ready Fast
Ingredients
- 1/2 cup (115 g) unsalted butter, melted and slightly cooled
- 1 cup (200 g) packed light brown sugar (dark brown works for a deeper flavor)
- 1 large egg, at room temperature
- 1 teaspoon pure vanilla extract
- 1 cup (125 g) all-purpose flour
- Pinch of fine salt (optional but recommended to balance sweetness)
Instructions
- Prep the pan and oven. Heat the oven to 350°F (175°C).Line an 8-inch square pan with parchment, leaving a little overhang for easy lifting. Lightly grease the parchment.
- Melt the butter. Melt the butter on the stovetop or in the microwave. Let it cool for 3–5 minutes so it doesn’t scramble the egg.
- Mix the wet ingredients. In a medium bowl, whisk the brown sugar and melted butter until glossy and thick.Whisk in the egg and vanilla until smooth.
- Add the dry ingredients. Sprinkle the flour and a pinch of salt over the bowl. Fold gently with a spatula until just combined. Stop as soon as no dry streaks remain.The batter will be thick.
- Spread and smooth. Scrape the batter into the lined pan. Use the spatula to press it into the corners and smooth the top.
- Bake. Bake for 18–22 minutes, or until the edges are set and lightly golden and the center looks just barely underdone. A toothpick should come out with moist crumbs, not wet batter.
- Cool and slice. Let the pan cool on a rack for at least 20–30 minutes.Lift the slab out using the parchment and cut into 9–16 squares.
FAQ
Can I double the recipe?
Yes.
Double all ingredients and bake in a 9×13-inch pan. Start checking at 22–25 minutes. The edges should be set and the middle slightly soft.
Do I need baking powder or baking soda?
No.
These blondies are meant to be dense and chewy, not cakey. Leaving out leaveners keeps that classic fudgy texture.
Can I use white sugar instead of brown?
You can, but the flavor and texture will change. Brown sugar adds moisture and caramel notes.
If you must use white sugar, reduce to 3/4 cup and expect a lighter color and a bit less chew.
How do I know they’re done?
Look for lightly golden edges, a soft center, and a toothpick that comes out with moist crumbs. If it comes out clean, they’re likely overbaked.
Why did my blondies sink in the middle?
A slight dip is normal because they’re fudgy. A deep sink can happen from underbaking or using a pan that’s too small, making the center too thick to set evenly.
Can I make them in a metal or glass pan?
Both work.
Metal pans brown faster; glass pans may need 2–3 extra minutes. Either way, start checking early to avoid overbaking.
How can I cut clean squares?
Cool completely, then use a sharp knife. Wipe the blade between cuts.
For ultra-neat edges, chill the slab for 20 minutes before slicing.
Can I make them gluten-free or dairy-free?
Yes. Use a 1:1 gluten-free flour for baking and a dairy-free butter substitute. Keep the measurements the same and watch the bake time.
Final Thoughts
Easy 5 Ingredient Blondies are the kind of recipe you keep in your back pocket.
They’re fast, flexible, and consistently good. Whether you keep them classic or toss in a handful of chocolate chips, you’ll end up with chewy, buttery bars that feel like a small win in a busy day. Keep the ingredients on hand and you’ll always be 30 minutes away from something sweet and homemade.
