Sugar Cookies with Buttercream are soft, beginner-friendly, and perfect for holidays, bake sales, or weekend decorating. These tender sour cream cookies bake up fluffy and reliable, then finish with a smooth vanilla frosting and festive sparkle.
These are the kind of cookies that fit right into real life. You can bake them for Easter trays, birthdays, classroom treats, or just because you want something sweet and cheerful waiting on the counter.
What makes them stand out is the texture. The sour cream gives the cookies a gentle softness, while the butter and vanilla in the frosting add that classic bakery-style finish people always reach for first.
They also keep things simple in your kitchen. The dough comes together without anything fussy, the cookies bake quickly in batches, and the buttercream spreads easily once everything has cooled.
What You Need to Make This Sugar Cookies with Buttercream
All-purpose flour gives the cookies their structure while still keeping the crumb soft and tender.
Baking powder helps the cookies rise just enough so they stay light instead of dense.
Fine salt balances the sweetness and keeps the vanilla flavor from tasting flat.
Unsalted butter adds richness to both the cookie dough and the frosting, giving each bite a fuller flavor.
Vegetable oil helps the cookies stay moist and soft even after they have cooled.
Sour cream is the key ingredient for that plush, tender texture and a gentle tang that rounds out the sweetness.
Granulated sugar sweetens the dough and helps create a smooth, creamy base when mixed with the butter and oil.
Vanilla extract brings classic flavor to both the cookies and the buttercream, making everything taste warm and familiar.
Milk loosens the frosting just enough so it becomes smooth, spreadable, and easy to decorate with.
Confectioners’ sugar creates a fluffy buttercream with a silky finish.
Seasonal sprinkles add color and a festive touch without changing the simple vanilla profile.
Step-by-Step Sugar Cookies with Buttercream
STEP 1: Start by heating your oven and preparing your baking sheets. A parchment-lined pan makes cleanup easier and helps the cookies lift off neatly once baked.
STEP 2: Whisk the dry ingredients together in a separate bowl so the leavening and salt are evenly distributed before they meet the wet mixture.
STEP 3: In a larger bowl, beat the softened butter with the oil and sour cream until the mixture looks creamy. Add the sugar and vanilla, then keep mixing until the base looks smooth and well blended.
STEP 4: Add the dry mixture little by little and mix just until a soft dough forms. This is one of those cookie doughs that benefits from a light hand, so stop as soon as everything is combined.
STEP 5: Scoop portions onto the baking sheet, leaving space between each one. Flattening them lightly with the bottom of a glass helps create the thick, classic sugar cookie shape that holds frosting beautifully.
STEP 6: Bake until the cookies are set and the edges are only just turning pale golden. You do not want deep color here, because that soft, tender bite is part of the charm.
STEP 7: Let the cookies rest briefly on the pan before moving them to a rack. They need to cool completely before frosting so the buttercream stays fluffy instead of melting.
STEP 8: Beat the frosting ingredients until smooth and creamy, then spread generously over each cooled cookie. Finish with sprinkles and let the tops set before stacking or storing.
Helpful Tips
- Do not overmix the dough once the flour goes in, or the cookies can lose some of their softness.
- Let the cookies cool fully before frosting so the buttercream keeps its shape and clean finish.
- Use parchment paper between layers when storing to protect the frosting and keep the cookies looking neat.
Can I make the dough ahead of time?
Yes. You can prepare the dough in advance and keep it covered in the refrigerator for about a day before baking. Let it sit briefly at room temperature if it feels too firm to scoop easily.
Why does sour cream work so well in these cookies?
Sour cream adds moisture and gives the cookies a softer crumb than many classic sugar cookie versions. It also brings a slight tang that keeps the sweetness balanced, especially once the vanilla frosting is added.
Can I tint the frosting for holidays or parties?
Yes. Gel food coloring works especially well because it adds color without thinning the buttercream too much. That makes it a good option for pastel Easter shades or brighter party colors.
How do I keep these cookies soft after baking?
Store them in a well-sealed container once the frosting has set. Keeping parchment between layers also helps protect the tops while trapping enough moisture to maintain that tender, bakery-style texture.
What to Serve with Sugar Cookies with Buttercream
These cookies pair especially well with a hot cup of coffee if you want something sweet but simple in the afternoon. The vanilla frosting and soft crumb work nicely with a darker roast.
They are also lovely on a dessert table beside fresh fruit. Berries or pineapple can add a bright contrast to the rich buttercream and make the platter feel a little more balanced.
For parties, serve them with other easy handheld treats like brownies or bar cookies. Their frosted finish adds color and softness to a dessert spread without making the whole table feel too heavy.
How to Store & Reheat
These cookies are best stored in an airtight container in a single layer at first, or with parchment paper between layers once the frosting has fully set. At room temperature, they are usually at their best for about 2 days if your kitchen is not too warm.
For a longer window, keep them in the refrigerator for up to 5 days. Let them sit out for a bit before serving so the frosting softens and the cookie texture feels tender again.
They can also be frozen, though it works best either before frosting or after the frosting has set solid. Freeze them in a layered container with parchment between the cookies for up to 2 months. Thaw in the refrigerator or at room temperature until soft.
These are not really cookies you need to reheat, but if you want that fresh-baked feel, let an unfrosted cookie sit at room temperature or warm it very briefly. Frosted cookies are better simply brought back to room temperature naturally so the buttercream stays smooth.
Sugar Cookies with Buttercream
Ingredients
For the cookies:
- 1 cup sour cream
- 1 teaspoon fine salt
- 1/2 cup unsalted butter softened to room temperature for easy mixing
- 1 1/2 teaspoons vanilla extract
- 1/2 cup vegetable oil
- 1 1/2 cups white granulated sugar
- 1 teaspoon baking powder
- 4 1/2 cups all-purpose flour
For the buttercream frosting and topping:
- 3 tablespoons milk preferably whole milk for a richer texture
- 1/2 cup unsalted butter softened
- 3 cups confectioners’ sugar sifted for a silky frosting
- 1 1/2 teaspoons vanilla extract
- Easter-themed sprinkles optional
Instructions
- Preheat the oven to 350°F (175°C). Lightly coat a baking sheet with grease or line it with parchment paper so the cookies release easily after baking.
- In a medium bowl, combine the all-purpose flour, baking powder, and salt. Whisk until evenly blended, then set the mixture aside.
- In a large mixing bowl, beat the softened butter, vegetable oil, and sour cream on medium speed for about 1 minute. Add the granulated sugar and vanilla extract, then continue mixing until the texture becomes smooth and creamy.
- Add the dry ingredients gradually to the wet mixture, mixing on low speed only until the dough comes together into a ball. Avoid overworking the dough.
- Portion the dough with a 2-inch cookie scoop and arrange the portions on the prepared baking sheet, leaving room between them for spreading. Keep the edges slightly uneven for texture, then gently flatten each portion with the bottom of a glass to emphasize the rustic edges.
- Bake for 10 to 12 minutes, or until the edges are just beginning to turn lightly golden. Let the cookies rest on the baking sheet for 5 minutes, then transfer them to a wire rack and cool completely.
- To make the frosting, beat the softened butter, milk, and vanilla extract together in a medium bowl until smooth. Gradually incorporate the powdered sugar, beating until the buttercream is creamy and uniform.
- Once the cookies are fully cooled, spread the buttercream generously over each one. Finish with sprinkles, if desired, and allow the frosting to set before storing.
