Introduction
Indulging in a freshly baked cookie layered with creamy buttercream frosting is one of life’s simple pleasures. This recipe combines the joy of cookie baking with vibrant rainbow sprinkles to create a delightful dessert that’s perfect for any occasion. Whether you’re celebrating a birthday, hosting a get-together, or just want to treat yourself, this cookie in a skillet topped with fluffy frosting is sure to impress.
Detailed Ingredients with measures
For the Cookie:
– 1½ cups all-purpose flour
– 1 teaspoon baking powder
– ½ teaspoon baking soda
– 1½ teaspoons cornstarch
– ½ cup butter, softened
– 1 cup granulated sugar
– 1 large egg
– 1 egg yolk
– 1 tablespoon vanilla extract
– ¼ cup rainbow sprinkles
For the Buttercream Frosting:
– ½ cup butter, softened
– 2 cups powdered sugar
– 1 teaspoon vanilla extract
– 1 to 2 tablespoons milk
Prep Time
The preparation time for this delicious cookie is approximately 15 minutes.
Cook Time, Total Time, Yield
The cookie will take about 25-30 minutes to bake. In total, including prep time, you’re looking at around 40-45 minutes from start to finish. This recipe yields one large cookie in a skillet, perfect for sharing among friends and family.
Don’t forget to store any leftovers in an airtight container to keep them fresh for up to 3 days. Enjoy the process and the delightful results!
Detailed Directions and Instructions
Step 1: Preheating
Preheat the oven to 350°F (175°C).
Step 2: Preparing the Skillet
Grease the bottom and sides of an iron skillet; set aside.
Step 3: Mixing Dry Ingredients
In a small bowl, whisk together the flour, baking powder, baking soda, and cornstarch; set aside.
Step 4: Creaming Butter and Sugar
Using a mixer, beat the butter until creamy. Add the sugar and beat until the mixture is light and fluffy, about 2 minutes.
Step 5: Adding Wet Ingredients
Add the egg, egg yolk, and vanilla extract to the butter-sugar mixture; mix until fully combined.
Step 6: Combining Dry and Wet Ingredients
Gradually add the flour mixture: stir in half, then add the remaining half, mixing until incorporated. Fold in the sprinkles.
Step 7: Spreading Cookie Dough
Spread the cookie dough evenly into the prepared skillet, smoothing the top with a rubber spatula. Add more sprinkles if desired.
Step 8: Baking
Bake for 25-30 minutes, until the top is lightly golden.
Step 9: Cooling
Remove from the oven and allow to cool for 15 minutes.
Buttercream Frosting
Step 10: Mixing Frosting Ingredients
In a medium-sized bowl, beat the butter, powdered sugar, and vanilla extract for one minute until smooth.
Step 11: Adjusting Frosting Consistency
Add one tablespoon of milk and beat for 30 seconds. Adjust thickness by adding additional sugar or milk as needed.
Step 12: Preparing for Piping
Transfer the frosting into a piping bag fitted with a star tip.
Step 13: Decorating
Pipe the frosting around the edge of the cooled cookie, making short 2-inch swirls. Top with sprinkles.
Notes
Storage
Store in an airtight container to prevent drying out for up to 3 days.

Cook techniques
Measuring Ingredients
Properly measure your ingredients for accuracy. Use dry measuring cups for flour and cornstarch, and liquid measuring cups for milk. Level off dry ingredients with a knife for exact measurements.
Creaming Butter and Sugar
Ensure the butter is softened to room temperature before creaming. Beat the butter first until creamy, then gradually add the granulated sugar. This process incorporates air into the mix, making for a light, fluffy texture.
Whisking Dry Ingredients
Whisk together flour, baking powder, baking soda, and cornstarch in a separate bowl to evenly distribute the leavening agents. This step also helps to aerate the flour, ensuring a lighter final product.
Folding in Sprinkles
Gently fold in the rainbow sprinkles at the end of mixing to avoid breaking them apart. This technique preserves their shape and color in the cookie dough.
Baking Technique
Spread the cookie dough evenly in the greased skillet to ensure even baking. Keep an eye on the cookies during the last few minutes of baking to avoid overcooking.
Cooling the Cookie
Allow the cookie to cool in the skillet for 15 minutes before frosting. This will help set the cookie and prevent the frosting from melting.
Making Buttercream Frosting
Beat the softened butter and powdered sugar together first to avoid a powdered sugar cloud. Add milk gradually to achieve the desired consistency for piping.
Piping the Frosting
Use a piping bag with a star tip to create decorative swirls. Practice your piping technique by squeezing and releasing the bag while moving in a circular motion around the edge.
FAQ
Can I substitute the butter in the cookie recipe?
Yes, you can substitute the butter with margarine or a vegan butter alternative, but the texture and flavor may differ slightly.
How can I achieve a thicker buttercream frosting?
To make thicker buttercream, gradually add more powdered sugar until you reach your desired consistency.
What can I use instead of rainbow sprinkles?
You can use chocolate chips, nuts, or any type of sprinkle for decoration, depending on your preference.
How should I store the decorated cookie?
Store the iced cookie in an airtight container at room temperature. It will remain fresh for up to 3 days.
Can I freeze the cookie?
Yes, you can freeze the cookie before adding frosting. Wrap it tightly in plastic wrap and store it in the freezer for up to 2 months. Thaw before frosting.
Conclusion
This delightful cookie skillet, topped with colorful buttercream frosting and sprinkles, is perfect for any occasion. Whether you’re celebrating a birthday or simply craving a sweet treat, this recipe balances a chewy texture with a light and fluffy frosting, creating an indulgent dessert that is sure to impress family and friends.
More recipes suggestions and combination
Chocolate Chip Cookie Skillet
Substitute rainbow sprinkles with chocolate chips for a classic chocolate chip cookie variation that everyone loves.
Peanut Butter Cookie Skillet
Replace half of the butter with creamy peanut butter in the cookie dough for a deliciously nutty twist.
Red Velvet Cookie Skillet
Add cocoa powder and red food coloring to the cookie dough for a festive red velvet treat, topped with cream cheese frosting.
Caramel Pecan Cookie Skillet
Incorporate chopped pecans and a swirl of caramel sauce into the cookie dough for a rich and indulgent flavor profile.
Oreo Cookie Skillet
Mix crushed Oreo cookies into the cookie dough and use vanilla buttercream for a fun and tasty version that Oreo lovers will adore.
Seasonal Sprinkles Variations
Change out the colorful sprinkles for seasonal ones, such as pastel sprinkles for Easter or pumpkin-shaped sprinkles for Halloween, to celebrate holidays.
Fruit-Infused Cookie Skillet
Add diced fruits such as strawberries or blueberries to the cookie dough for a fruity flavor and gentle sweetness that pairs well with the frosting.
