These Oven Baked Orange Slice Blondie Bars are the ultimate 5-ingredient potluck dessert that everyone talks about long after the pan is empty. Imagine a chewy, buttery blondie made from yellow cake mix, studded with whole orange slice candies that melt into bright, jammy pockets of sweet citrus in the oven. They bake up golden on the edges, soft and dense in the middle, and loaded with that nostalgic candy-store flavor we all loved as kids.
If you’re looking for an easy orange candy dessert, a cake mix blondie bars recipe, or a colorful cookie bar for a crowd, this is it. Just 5 simple pantry ingredients, one bowl, and a clear glass 9×13 baking dish — no mixer needed.
Why You’ll Love This Recipe
This is the definition of an easy small-town potluck treat. The whole orange slice candies do all the work — they don’t just add sweetness, they create chewy, slightly caramelized citrus bursts that make every bite different from a regular brownie or blondie. Because it starts with yellow cake mix, the batter is foolproof, thick, and buttery. It’s cozy, colorful, budget-friendly, and disappears fast. This is the kind of sweet treat your family will beg for weekly.
5-Ingredient Orange Slice Blondie Bars
Makes: 24 bars
Prep Time: 10 minutes
Bake Time: 24-30 minutes
Ingredients – And Why Each One Matters
1 box yellow cake mix (15.25 oz)
This is your foolproof blondie base. It provides flour, sugar, leavening, and vanilla flavor all in one, giving you that soft, chewy, bakery-style texture without measuring a dozen ingredients. Use any classic yellow cake mix — not one with pudding already added if you can avoid it.
2 large eggs
Eggs are the binder and richness builder. They hold the thick batter together and give the bars structure so they slice cleanly while staying soft in the center.
1/2 cup unsalted butter, melted and slightly cooled
Melted butter is the secret to a dense, chewy blondie bar instead of a cakey one. It adds rich buttery flavor and that irresistible golden edge.
1 package orange slice candies, unwrapped (10 to 12 ounces)
The star of the show. These classic orange slice gummy candies are coated in sugar and burst with bright orange flavor. When baked whole, they melt just enough to create chewy citrus pockets throughout the bars. This is what makes them so unique and nostalgic.
1 teaspoon vanilla extract
Vanilla rounds out the sweetness and enhances both the cake mix and the fresh orange flavor, keeping the bars from tasting one-dimensionally sweet.
Step-by-Step Instructions
Step 1: Prep your pan.
Preheat your oven to 350°F. Lightly grease a clear glass 9×13 baking dish with butter or nonstick spray. For ultra-easy cleanup, line it with parchment paper leaving an overhang.
Step 2: Make the thick blondie batter.
In a large mixing bowl, stir together the yellow cake mix, 2 large eggs, melted butter, and vanilla extract until a thick, smooth batter forms. It will be much thicker than cake batter — more like cookie dough. That’s exactly what you want for chewy blondie bars.
Step 3: Fold in the candies.
Gently fold in the whole unwrapped orange slice candies, making sure they are evenly distributed through the batter. The batter is thick, so use a sturdy spatula and press the candies in so every square gets plenty.
Step 4: Spread and smooth.
Spread the batter evenly into your prepared 9×13 dish. It will be sticky, so spray your spatula lightly or use damp fingers to smooth the top into an even layer.
Step 5: Bake to golden perfection.
Bake for 24 to 30 minutes, or until the edges are golden brown and the center is set. A toothpick inserted in the center should come out with moist crumbs, not wet batter. Do not overbake — the bars will firm up as they cool.
Step 6: Cool completely before slicing.
This is critical for clean, perfect slices. These bars are sweet and sticky while warm. Let them cool completely in the pan on a wire rack for at least 1 hour before cutting into squares.
Pro Tips for Perfect Orange Slice Blondie Bars
1. Chop for a smoother texture: Love the flavor but want less chew? For picky eaters or a bakery-style texture, chop the orange slice candies into quarters before folding them in. They melt more evenly and distribute better.
2. Don’t skip the cooling: Because of the melted candy, the bars need to set. Cutting too early will give you a gooey mess. For the cleanest cuts, chill for 20 minutes after cooling.
3. Add fresh citrus balance: Stir in 1 teaspoon finely grated orange zest to cut the candy sweetness and add a fresh, bright citrus aroma.
4. Make them extra rich: If you don’t mind a 6th ingredient, fold in 1/2 cup white chocolate chips with the candies. It makes them taste like a white chocolate orange creamsicle blondie.
5. Watch your glass dish: Every oven is different. Clear glass bakes hotter on the edges, so start checking at 24 minutes. If your edges brown too fast, tent loosely with foil for the last 5 minutes.
Serving Suggestions to Complete the Dessert
Serve these sweet orange slice blondie bars slightly warm or fully cooled. They are incredible on their own, but try them:
With a glass of cold milk or hot coffee for the ultimate cozy snack
Warmed for 10 seconds and topped with a scoop of vanilla ice cream
On a holiday cookie tray alongside fresh fruit, salted nuts, and whipped topping to balance their bright sweetness
Drizzled with a simple orange glaze made from powdered sugar and orange juice
Storage: Keep your blondie bars covered at room temperature for up to 3 days for softest texture, or refrigerate for up to 5 days for a firmer, chewier texture that many people actually prefer. They also freeze beautifully for up to 2 months.
Final Bite
If you need a quick, 5-ingredient dessert that is cozy, colorful, a little nostalgic, and guaranteed to disappear, these Orange Slice Blondie Bars are the answer. With a buttery cake mix base and those unforgettable chewy orange candy pockets, they are so much more than everyday brownies. One pan, five ingredients, zero stress — this is the easy potluck blondie recipe you’ll make on repeat.