These dessert bars are the definition of simple: a buttery shortbread base, a layer of sweet chocolate, and a crumbly oat topping. No complicated techniques, no special equipment, just straightforward baking that delivers consistent results.
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The recipe is built on a classic crumble bar structure. The same dough serves as both the base and the topping, which cuts down on prep time and dishes. You'll get a firm yet tender base that holds up to the chocolate, and a crisp, golden topping that adds texture.
I've tested this recipe to ensure the ratios are right. The butter-to-flour ratio gives you a dough that's easy to press but not greasy. The chocolate layer stays soft and gooey after baking, creating a nice contrast with the crunchy oat topping.
Why You'll Love This Recipe
About the Ingredients
1 cup (226g) unsalted butter, melted
Use good quality butter for best flavor. You can substitute salted butter, but reduce added salt to 1/4 teaspoon.
1 cup (200g) packed light brown sugar
Brown sugar adds moisture and a deeper flavor. Dark brown sugar works too, but will make the bars slightly darker.
1 large egg
Brings structure and richness. For a dairy-free option, you can use a flax egg (1 tbsp ground flax mixed with 3 tbsp water).
1 teaspoon vanilla extract
Pure vanilla gives the best flavor, but imitation vanilla is fine in a pinch.
1 1/2 cups (190g) all-purpose flour
Standard all-purpose flour works perfectly. For a whole wheat option, use white whole wheat flour for a milder taste.
1 1/2 cups (135g) old-fashioned rolled oats
Use old-fashioned oats, not instant, for the best texture. Quick oats will work but give a softer crumb.
1/2 teaspoon baking soda
Helps the bars rise slightly. Make sure it's fresh for proper leavening.
1/2 teaspoon salt
Balances the sweetness. If using salted butter, reduce to 1/4 teaspoon.
1 1/2 cups (255g) semi-sweet chocolate chips
You can substitute milk chocolate or dark chocolate chips. For a fruity twist, use butterscotch or white chocolate chips.
Tips & Tricks
Don't overmix the dough
Mix until just combined to avoid tough bars. Overworking develops gluten, making the base dense.
Press the base firmly
Use the bottom of a measuring cup to pack the base into the pan. This prevents the chocolate from seeping underneath.
Watch the baking time
Ovens vary. Start checking at 25 minutes. The edges should be golden brown and the top lightly browned. The center may look slightly soft, but it will set as it cools.
Pro Tips
Step-by-Step Instructions
1. Preheat and Prepare
Preheat oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving overhang on two sides for easy removal.
2. Mix Wet Ingredients
In a large bowl, whisk together melted butter and brown sugar until smooth. Whisk in the egg and vanilla extract until fully combined.
3. Add Dry Ingredients
Stir in flour, oats, baking soda, and salt with a spatula until just combined. Do not overmix; the dough will be thick and slightly crumbly.
4. Reserve and Press Base
Set aside about 1/2 cup of the dough for the topping. Press the remaining dough evenly into the prepared pan, using the bottom of a glass to compact it firmly.
5. Add Chocolate Layer
Sprinkle the chocolate chips evenly over the base, leaving a small border around the edges to prevent sticking.
6. Crumble Topping
Crumble the reserved dough over the chocolate chips in small clumps. This will create a rustic, crumbly top.
7. Bake Until Golden
Bake for 30-35 minutes, or until the top is golden brown and the edges are lightly browned. A toothpick inserted into the center should come out with a few moist crumbs, not wet batter.
8. Cool and Slice
Let cool completely in the pan on a wire rack for at least 1 hour. Once cool, lift out using the parchment, then cut into 9 or 12 bars.
Delicious Variations
Swap chocolate chips for raspberry jam
spread a thin layer of jam over the base before baking.
- Add 1/2 cup chopped walnuts or pecans to the topping for extra crunch.
- Use white chocolate and dried cranberries for a festive twist.
How to Store Easy Simple Dessert Bars
Refrigerator
Store in an airtight container at room temperature for up to 4 days.
Freezer
Wrap individual bars in plastic wrap and freeze in a zip-top bag for up to 3 months.
Reheating
Microwave a bar for 15-20 seconds to warm the chocolate, or enjoy at room temperature.
Frequently Asked Questions
Q: Can I use quick oats instead of old-fashioned rolled oats?
Yes, quick oats will work, but they will produce a slightly softer, less textured topping. Old-fashioned oats provide a better chew.
Q: Can I make these bars gluten-free?
Yes, substitute the all-purpose flour with a 1:1 gluten-free baking flour blend and ensure your oats are certified gluten-free. The texture will be slightly different but still delicious.
Q: Why did my bars turn out dry?
Dry bars are usually caused by overbaking. Check for doneness at the 30-minute mark and remember that the bars will continue to set as they cool. Also, ensure you measure the flour correctly by spooning and leveling it.
Q: Can I use a 9×13-inch pan?
Yes, double the recipe and bake for 25-30 minutes, checking for doneness. The bars will be thinner, so adjust baking time accordingly.
If you tried these Easy Simple Dessert Bars, let me know how they turned out in the comments below. Share your variations or questions—I'd love to hear from you. Keep your money moving.
Easy Simple Dessert Bars
These easy dessert bars are a buttery, chocolatey treat that comes together in under an hour with simple pantry staples.
🧂 Ingredients
- 1 cup (226g) unsalted butter, melted
- 1 cup (200g) packed light brown sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 1 1/2 cups (190g) all-purpose flour
- 1 1/2 cups (135g) old-fashioned rolled oats
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 1/2 cups (255g) semi-sweet chocolate chips
📋 Instructions
- 1Preheat and Prepare — Preheat oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving overhang on two sides for easy removal.
- 2Mix Wet Ingredients — In a large bowl, whisk together melted butter and brown sugar until smooth. Whisk in the egg and vanilla extract until fully combined.
- 3Add Dry Ingredients — Stir in flour, oats, baking soda, and salt with a spatula until just combined. Do not overmix; the dough will be thick and slightly crumbly.
- 4Reserve and Press Base — Set aside about 1/2 cup of the dough for the topping. Press the remaining dough evenly into the prepared pan, using the bottom of a glass to compact it firmly.
- 5Add Chocolate Layer — Sprinkle the chocolate chips evenly over the base, leaving a small border around the edges to prevent sticking.
- 6Crumble Topping — Crumble the reserved dough over the chocolate chips in small clumps. This will create a rustic, crumbly top.
- 7Bake Until Golden — Bake for 30-35 minutes, or until the top is golden brown and the edges are lightly browned. A toothpick inserted into the center should come out with a few moist crumbs, not wet batter.
- 8Cool and Slice — Let cool completely in the pan on a wire rack for at least 1 hour. Once cool, lift out using the parchment, then cut into 9 or 12 bars.
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