Star-Shaped Red, White, and Blue Cookies
These star-shaped red, white, and blue cookies are straightforward, festive, and comforting—perfect for a summer picnic, a neighborhood bake sale, or a patriotic holiday. They come from a blondie-style slab that you cut into stars, then dress with a soft red buttercream and extra sprinkles. The method keeps things simple: melt, mix, bake, cool, cut, and frost.
I like this recipe because it’s forgiving. The batter is quick to pull together, and the bake time is short, so you can get from bowl to plate in under two hours total (most of that is waiting for the slab to cool). You don’t need complicated equipment: a microwave, a small baking pan, and a handful of cookie cutters will do the job.
Below I walk through the ingredients and the exact steps, then share variations, troubleshooting tips, and storage notes so your stars come out tidy and taste reliably buttery and sweet.
What Goes In
Here is everything called for in the source recipe. For each ingredient I add a quick note about its role or a small tip so you can get the best texture and flavor.
- ½ cup unsalted butter (1 stick), melted — Provides the fat and buttery flavor; melt gently and let cool slightly so it’s warm, not hot, before mixing with egg.
- 1 large egg — Binds the batter and helps set the blondie texture.
- 1 cup light brown sugar, packed — Adds sweetness and a touch of molasses for chewiness and color; pack it lightly when measuring.
- 1 tablespoon McCormick Pure Vanilla Extract, or as desired — Flavor lift; use a quality vanilla for the best background note.
- 1 cup all-purpose flour — Structure for the slab; measure by spooning into the cup and leveling for accuracy.
- ½ teaspoon salt, or to taste — Balances sweetness and brightens flavor; reduce only if using salted butter and you prefer less salt.
- ½ cup red, white, and blue sprinkles — Folded into the batter for festive color pockets; fold gently to avoid deflating the batter.
- ¼ cup unsalted butter, softened — For the frosting; bring to room temperature so it whips light and smooth.
- about 2 to 2 1/4 cups confectioners’ sugar — Sweetens and thickens the frosting; add gradually to reach desired consistency.
- 2 to 3 teaspoons cream or milk — Adjusts frosting texture; start with less and add to reach spreadable consistency.
- one 1-ounce bottle McCormick Red Food Color, as necessary — A few drops at a time will get you the shade you want; add slowly to avoid overshooting.
- red, white, and blue sprinkles, as desired for decorating — For a final decorative touch; add immediately after spreading to the frosting so they stick.
Star-Shaped Red, White, and Blue Cookies — Do This Next
- Preheat oven to 350°F (175°C). Line an 8×8-inch baking pan with aluminum foil and spray the foil with cooking spray; set the prepared pan aside.
- In a large, microwave-safe bowl add ½ cup unsalted butter (1 stick) and microwave until melted, about 1 minute on high. Let the melted butter cool for a minute so it is warm, not hot.
- Add 1 large egg, 1 cup light brown sugar (packed), and 1 tablespoon McCormick Pure Vanilla Extract to the cooled melted butter. Whisk until smooth and uniform.
- Add 1 cup all-purpose flour and ½ teaspoon salt to the wet mixture. Stir with a spatula or spoon until just combined; do not overmix.
- Fold in ½ cup red, white, and blue sprinkles until evenly distributed in the batter.
- Turn the batter into the prepared 8×8-inch pan and smooth the top lightly with a spatula.
- Bake at 350°F for 20–24 minutes, or until the top is set in the center. A toothpick inserted in the center should come out clean or with a few moist crumbs but no wet batter. Do not overbake; the blondies will firm as they cool.
- Remove the pan from the oven and set it on a wire rack. Cool completely in the pan for at least 90 minutes before cutting or frosting.
- After cooling, cut the baked slab into star shapes using star-shaped cookie cutters, or cut into pieces of your desired shape. You may also leave the slab whole to frost before cutting.
- To make the frosting, place ¼ cup unsalted butter (softened) in a large bowl. Beat with an electric mixer until light and creamy.
- Add about 2 to 2 1/4 cups confectioners’ sugar gradually, beating to incorporate and scraping down the bowl as needed. Add 2 to 3 teaspoons cream or milk slowly, stopping when the frosting reaches a spreadable consistency you like.
- Add McCormick Red Food Color from the 1-ounce bottle a few drops at a time, stirring after every 10–15 drops, until you reach the desired red color.
- Spread the frosting over the cooled stars (or over the whole pan if you left it intact). Add red, white, and blue sprinkles as desired for decorating.
- Store any leftover frosting airtight in the refrigerator for up to two weeks.
Why I Love This Recipe
This recipe hits the sweet spot between easy and impressive. The base is a blondie slab: no scooping tiny cookies, no chilling dough, no long shaping. You get an even, chewy interior and a thin, slightly crisp top that holds a cut edge well when fully cooled.
The decoration is flexible. You can cut stars for a uniform presentation, or leave the slab whole and pipe or spread frosting for a casual look. The red buttercream is bold but uncomplicated to tint. And folding sprinkles into the batter means you get pops of color inside each cookie, not only on top.
Finally, it’s a good recipe to bring to group gatherings. It travels well if you stack in a single layer with parchment between, and the frosting holds up if kept cool.
Low-Carb/Keto Alternatives
If you need a lower-carb version, the texture will change, but you can approximate these treats with a few swaps.
- Flour: Replace the 1 cup all-purpose flour with about 1 cup almond flour plus 2 tablespoons coconut flour and reduce the melted butter by 1 tablespoon to account for absorbency; results will be denser and more fragile.
- Sugar: Substitute 1 cup erythritol-based brown sugar substitute designed for baking; expect a slightly different caramel note and monitor sweetness to taste.
- Frosting: Make a buttercream with powdered erythritol or a confectioners-style sweetener and use heavy cream to thin; color with gel food coloring to reduce water content.
Note: sugar-free sprinkles are less common; you can skip the internal sprinkles and add a few low-carb-friendly toppings like crushed nuts for visual interest.
Toolbox for This Recipe
Minimal equipment is required, but having the right tools makes things smoother.
- 8×8-inch baking pan, lined with foil for easy removal.
- Microwave-safe bowl for melting butter (or use a small saucepan on the stove).
- Spatula and whisk: a whisk for combining wet ingredients, a spatula for folding in flour and sprinkles.
- Electric mixer for the frosting to get a light, smooth texture.
- Star-shaped cookie cutters in sizes you like; small and medium shapes give good variety.
- Wire rack to cool the pan completely before cutting, which is key to clean edges.
Troubles You Can Avoid
Underbaked center
If the center seems gooey after 24 minutes, resist the urge to cut immediately. The recipe specifies cooling for at least 90 minutes; the slab firms up as it cools. If a toothpick still shows wet batter before cooling, add a minute or two of bake time and check again.
Crumbly or falling-apart stars
Cut only after the slab has fully cooled. If you cut warm, the edges will crumble. Also, overmixing after adding flour can make the texture tighter and less cohesive—stir just until combined.
Frosting too thin or too thick
Add confectioners’ sugar gradually and stop when you reach a spreadable texture. If it’s too thin, add a bit more sugar; if too thick, add cream ¼ teaspoon at a time.
Variations by Season
These cookies are built for celebration. Slight tweaks make them seasonal:
- Summer: Add a teaspoon of lemon zest to the batter for a bright lift that pairs nicely with the red icing.
- Fall: Use warm spices—1/4 teaspoon cinnamon and a pinch of nutmeg—folded into the dry ingredients.
- Winter: Swap the sprinkles for mini white chocolate chips and use a deeper-colored frosting for contrast.
- Spring: Use pastel sprinkles and a very light-tinted frosting for a gentler look.
Pro Tips & Notes
Little details make a big difference with this slab-style recipe.
- Cooling matters: The instruction to cool at least 90 minutes is not optional if you want clean star shapes.
- Frost while stars are still flat: If you cut stars and they’re tall or uneven, press them gently flat on the wire rack before frosting so the icing spreads smoothly.
- Color control: Add red coloring in small increments and stir well between additions. Gel color can be more concentrated than liquid, so use sparingly.
- Even sprinkle distribution: Fold sprinkles into the batter gently. If you mix too vigorously, the color may bleed into the batter or the sprinkles may break down.
Store, Freeze & Reheat
Store unfrosted stars in an airtight container at room temperature for up to two days. Frosted stars should be refrigerated and eaten within 3–4 days. Bring refrigerated cookies to room temperature before serving for the best flavor and texture.
Freeze unfrosted slabs or unfrosted cut stars in a single layer on a baking sheet until firm, then transfer to a freezer bag for up to 2 months. Thaw in the refrigerator or at room temperature before frosting. Frosted cookies don’t freeze as well because the frosting can shift; if you must freeze frosted cookies, freeze in a single layer and use parchment between layers.
Handy Q&A
Q: Can I bake this in a 9×9-inch pan instead?
A: Yes, but bake time may be slightly less because the slab will be thinner—start checking at 18 minutes.
Q: Do I have to use McCormick Red Food Color?
A: You can use any concentrated red gel or liquid food coloring. The recipe calls for McCormick to guide quantity, but adjust based on the product you own.
Q: My sprinkles bled color into the batter. What caused that?
A: Some sprinkles are more prone to bleeding when mixed into wet batter. Try folding them in last and briefly, or use non-bleeding sprinkles labeled as “no bleed” if available.
Q: Can I make the frosting less sweet?
A: Reduce confectioners’ sugar slightly, but balance with a touch more butter or a dash of salt so it doesn’t taste flat. Taste as you go.
Serve & Enjoy
Arrange the stars on a platter with a few whole sprinkles or patriotic napkins for effect. These treats pair well with cold milk, tea, or an easy lemonade. They’re kid-friendly and crowd-pleasing—pack them in a box and they travel well to potlucks or parades.
Make the slab one day and decorate the next if you need to spread the work. The frosting keeps in the fridge for up to two weeks, so you can tint and portion it as needed. Enjoy the process and the smiles these sweet stars bring.
Star-Shaped Red, White, and Blue Cookies
Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Line an 8×8-inch baking pan with aluminum foil and spray the foil with cooking spray; set the prepared pan aside.
- In a large, microwave-safe bowl add ½ cup unsalted butter (1 stick) and microwave until melted, about 1 minute on high. Let the melted butter cool for a minute so it is warm, not hot.
- Add 1 large egg, 1 cup light brown sugar (packed), and 1 tablespoon McCormick Pure Vanilla Extract to the cooled melted butter. Whisk until smooth and uniform.
- Add 1 cup all-purpose flour and ½ teaspoon salt to the wet mixture. Stir with a spatula or spoon until just combined; do not overmix.
- Fold in ½ cup red, white, and blue sprinkles until evenly distributed in the batter.
- Turn the batter into the prepared 8×8-inch pan and smooth the top lightly with a spatula.
- Bake at 350°F for 20–24 minutes, or until the top is set in the center. A toothpick inserted in the center should come out clean or with a few moist crumbs but no wet batter. Do not overbake; the blondies will firm as they cool.
- Remove the pan from the oven and set it on a wire rack. Cool completely in the pan for at least 90 minutes before cutting or frosting.
- After cooling, cut the baked slab into star shapes using star-shaped cookie cutters, or cut into pieces of your desired shape. You may also leave the slab whole to frost before cutting.
- To make the frosting, place ¼ cup unsalted butter (softened) in a large bowl. Beat with an electric mixer until light and creamy.
- Add about 2 to 2 1/4 cups confectioners’ sugar gradually, beating to incorporate and scraping down the bowl as needed. Add 2 to 3 teaspoons cream or milk slowly, stopping when the frosting reaches a spreadable consistency you like.
- Add McCormick Red Food Color from the 1-ounce bottle a few drops at a time, stirring after every 10–15 drops, until you reach the desired red color.
- Spread the frosting over the cooled stars (or over the whole pan if you left it intact). Add red, white, and blue sprinkles as desired for decorating.
- Store any leftover frosting airtight in the refrigerator for up to two weeks.
Notes
*Instead of making your own frosting, you may also use half of one 14-ounce container
store-bought whipped fluffy white frosting
.
Storage:
Cookies will keep airtight at room temp for up to 4 days or in the fridge for up to 1 week. I’m comfortable storing frosted items at room temp, but if you’re not store in the fridge noting cookies will be more prone to drying out in the fridge.
Adapted from
Soft-Frosted Valentine Heart Cookies
