Chewy Oatmeal Chocolate Chunk Blondie Bars

These are the dessert bars you make when you want “cookies,” but you don’t want to scoop dough or bake in batches. Oatmeal chocolate chunk blondie bars are a one-pan win: chewy, buttery, and loaded with melty chocolate. The oats add a cozy texture that keeps the bars soft, and brown sugar gives that classic caramel-like flavor that makes blondies so addictive.

The best part is how low-stress they are. You can mix everything in one bowl, press it into a pan, and bake. No mixer needed (though you can use one). The key is not overbaking—pull them when the center still looks slightly soft. They set as they cool, and that’s how you get chewy bars instead of dry cake.

These bars also freeze well, which is always a bonus. Slice them, wrap them, and you’ve got dessert ready for random cravings, guests, or lunchbox treats. If you want them extra fancy, sprinkle flaky salt on top right after baking. It makes the chocolate pop.

Why you’ll love it

• One pan, no cookie scooping
• Chewy, soft texture with crisp edges
• Chocolate chunks melt into pockets
• Great for parties, lunchboxes, and freezing
• Easy to customize with add-ins

Ingredients tips

• Rolled oats: Old-fashioned oats give best chew; quick oats work but softer.
• Butter: Melted butter makes mixing easy and keeps bars moist.
• Brown sugar: Adds caramel flavor; light or dark both work.
• Eggs: Room temp mixes smoother, but cold is fine.
• Chocolate: Chunks or chopped chocolate melt better than tiny chips.
• Salt: Don’t skip—it balances sweetness.
• Pan size: 8×8 gives thicker bars; 9×9 gives thinner bars.

How to make it (method — step-by-step)

1. Preheat oven and line pan with parchment.
2. Whisk melted butter and brown sugar.
3. Add eggs and vanilla.
4. Stir in flour, oats, baking powder, and salt.
5. Fold in chocolate chunks.
6. Press into pan and bake until edges set.
7. Cool fully, then slice.

Easy upgrades (choose 1–2)

• Add chopped walnuts or pecans
• Sprinkle flaky salt on top
• Add a pinch of cinnamon
• Drizzle with melted chocolate after cooling

What to serve with it

• Vanilla ice cream
• Fresh berries
• Coffee or cold milk
• Whipped cream

Meal prep + leftovers

Store airtight at room temp up to 3 days or fridge up to 5. Freeze slices up to 2 months; thaw at room temp.