Cake Bars Recipe tastes buttery and plush with golden edges, a tender crumb, and just enough sweetness to keep you slicing “one more piece.” It suits bake sale stars, busy parents, and weeknight dessert fans, and it takes about 45 minutes start to finish. I baked my first batch in a tiny apartment oven, and it hooked me for good.
Why Cake Bars Recipe Is Worth It
Cake Bars Recipe delivers bakery-style flavor with simple steps and zero fuss. You whisk, spread, bake, and slice dessert bars that travel well and please kids and grown-ups.
You also win on flexibility. You can go classic vanilla, swirl in peanut butter, or glaze the top, and each version still lands soft and moist.
Buttery, tender, and gone before the pan cools; my family asked for a double batch the next day ★★★★★
Ingredients You Need
- Unsalted butter: 1 cup, melted and slightly cooled (use good butter for better flavor; store brands work fine)
- Granulated sugar: 1 cup
- Light brown sugar: 1/2 cup, packed (keeps bars moist)
- Large eggs: 3, room temp for best mixing
- Vanilla extract: 2 teaspoons (use pure vanilla; Nielsen-Massey gives a rich aroma)
- Sour cream or Greek yogurt: 1/2 cup (adds tang and tenderness; full-fat tastes best)
- Milk: 1/3 cup (dairy-free milk works)
- All-purpose flour: 2 cups, spooned and leveled
- Baking powder: 1.5 teaspoons
- Fine sea salt: 1/2 teaspoon
- Optional mix-ins: 1 cup chocolate chips, chopped chocolate, sprinkles, or berries tossed with 1 teaspoon flour
- Simple vanilla glaze: 1 cup powdered sugar, 2 to 3 tablespoons milk, 1/2 teaspoon vanilla, pinch of salt
- Pantry shortcut: Swap the dry ingredients with a 15.25-ounce yellow cake mix, use 1/2 cup melted butter, 2 eggs, and 1/2 cup milk for an easy cake bars base
Equipment
- 9×13 metal baking pan
- Parchment paper and nonstick spray
- Large bowl, whisk, and spatula
- Wire rack and sharp knife
Quick Tips & substitutions
- Line the pan with a parchment sling so you can lift the bars out in one go.
- Weigh or lightly spoon flour to avoid a dense crumb.
- Use room-temp eggs so the batter mixes smooth and glossy.
- Keep mix-ins at 1 to 1.5 cups so the bars bake evenly.
- Want thicker bars? Use a 9×9 pan and bake a few minutes longer.
- Go dairy-free with plant butter, dairy-free yogurt, and oat or almond milk.
- Need gluten-free? Use a 1:1 baking blend and check doneness early.
- Sprinkle extra chips on top so every square looks bakery-level.
- Cool before glazing so the topping sets instead of soaking in.
- Chill the pan 20 minutes for ultra-clean slices.
How to Make Cake Bars Recipe
Prep the pan and oven
- Heat oven to 350°F. Grease a 9×13 metal pan and line it with a parchment sling.
Whisk the wet ingredients
- In a large bowl, whisk melted butter, granulated sugar, and brown sugar until glossy, about 30 seconds.
- Add eggs and vanilla, then whisk until the mixture thickens slightly, 30 to 45 seconds.
- Whisk in sour cream and milk until smooth.
Add the dry ingredients
- In the same bowl, sprinkle in flour, baking powder, and salt.
- Switch to a spatula and fold until no dry streaks remain. Do not overmix.
Fold in extras
- Stir in chocolate chips or your favorite mix-ins.
- Spread the batter evenly in the pan and smooth the top.
Bake
- Bake 22 to 26 minutes, until the top looks set and a toothpick comes out with a few moist crumbs.
- Rotate the pan at the 18-minute mark if your oven browns unevenly.
Cool and glaze
- Cool the pan on a rack for 20 minutes.
- Whisk powdered sugar, milk, vanilla, and a pinch of salt until pourable, then drizzle over the warm bars. Let it set 10 minutes.
Slice and serve
- Lift the slab out with the parchment and cut into 20 to 24 bars.
- Keep a fork handy; these go fast.
Variations
- Lemon poppy: Add 1 tablespoon lemon zest, 2 teaspoons juice, and 1 tablespoon poppy seeds; swap vanilla glaze for lemon glaze.
- Funfetti: Fold in 1/2 cup rainbow sprinkles and use almond extract for half of the vanilla.
- Chocolate peanut butter swirl: Dollop 1/3 cup warmed peanut butter on top of the batter and swirl with a knife.
- Strawberry crumble: Fold in 1 cup diced strawberries, then top with 1/2 cup quick streusel.
- Cinnamon roll: Add 2 teaspoons cinnamon to the batter and drizzle with cream cheese icing.
- Mocha chip: Swap 2 tablespoons milk with cooled espresso and fold in dark chocolate chunks.
Ways to Serve
- Cut generous squares and top with vanilla ice cream.
- Pack small bars for lunchboxes or road trips.
- Plate warm bars with fresh berries and a dusting of powdered sugar.
- Pair with coffee, black tea, or a cold glass of milk.
- Make dessert sandwiches with a scoop of ice cream between two thin bars.
Storage
Keep cake bars in an airtight container at room temp for 2 to 3 days. Refrigerate up to 1 week and bring to room temp before serving for the best texture. Freeze slices in a single layer, then store in bags for up to 2 months. Thaw at room temp and warm in a 300°F oven for 5 minutes if you want that just-baked vibe.
Cake Bars Recipe
Cake Bars Recipe tastes buttery and plush with golden edges, a tender crumb, and just enough sweetness to keep you slicing one more piece.
Ingredients
Instructions
- Preheat the oven to 350°F (175°C). Grease a 9x13-inch metal baking pan and line it with a parchment paper sling for easy removal.
- In a large bowl, whisk together the melted butter, granulated sugar, and light brown sugar until glossy, about 30 seconds.
- Add the eggs and vanilla extract, then whisk until the mixture slightly thickens, 30 to 45 seconds.
- Whisk in the sour cream or Greek yogurt and the milk until the batter is smooth.
- Sprinkle the flour, baking powder, and fine sea salt over the wet ingredients. Switch to a spatula and fold gently until no dry streaks remain, taking care not to overmix.
- Fold in chocolate chips or your preferred mix-ins, if using, keeping the total amount of mix-ins to about 1 cup.
- Spread the batter evenly into the prepared pan and smooth the top with a spatula.
- Bake for 22 to 26 minutes, or until the top looks set and a toothpick inserted in the center comes out with a few moist crumbs. If your oven browns unevenly, rotate the pan at about 18 minutes.
- Place the pan on a wire rack and let the bars cool for about 20 minutes.
- For the glaze, whisk together the powdered sugar, 2 tablespoons of milk, vanilla, and a pinch of salt until smooth and pourable, adding more milk a little at a time if needed.
- Drizzle the glaze over the warm cake bars and let it set for about 10 minutes.
- Use the parchment sling to lift the bars from the pan. Slice into 20 to 24 bars and serve. For cleaner slices, chill the pan briefly before cutting.
Notes
Nutrition Information
Approximate per 1 of 20 bars (without optional mix-ins): 260 calories; fat 13 g; saturated fat 7 g; carbohydrates 33 g; fiber 0 g; sugars 22 g; protein 4 g; sodium 160 mg. Values will vary based on specific ingredients, mix-ins, and portion size.
Approximate per 1 of 20 bars (without optional mix-ins): 260 calories; fat 13 g; saturated fat 7 g; carbohydrates 33 g; fiber 0 g; sugars 22 g; protein 4 g; sodium 160 mg. Values will vary based on specific ingredients, mix-ins, and portion size.