Ingredients
Equipment
Method
Step 1: Prepare the Dough Base
- In a mixing bowl, cream butter, granulated sugar, and powdered sugar until light and fluffy.
- Mix in vegetable oil, egg, milk, and vanilla extract.
Step 2: Combine Dry Ingredients
- In a separate bowl, whisk flour, baking soda, cream of tartar, and salt.
- Add dry ingredients gradually into the wet mixture until a soft dough forms.
Step 3: Press Into Pan
- Line a 9×13 pan with parchment.
- Press dough evenly into the pan (lightly flour hands if sticky).
Step 4: Bake
- Bake at 350°F (175°C) for 14–18 minutes, or until edges are lightly golden but center looks soft—this keeps them chewy.
Step 5: Cool Completely
- Let bars cool in the pan before frosting.
Step 6: Make the Frosting
- Beat softened butter until creamy.
- Add powdered sugar gradually, then add milk, vanilla, and salt.
- Beat until smooth and fluffy.
- Color frosting if desired.
Step 7: Frost & Decorate
- Spread frosting over cooled bars.
- Top with sprinkles.
Step 8: Slice & Serve
- Cut into squares or rectangles and enjoy!
Notes
🧊 Storage & Reheating
Refrigerate for up to 5 days in an airtight container.
Freeze unfrosted bars for up to 2 months; freeze frosting separately.
Frost right before serving for freshest texture.
🥄 Variations
Funfetti Bars: Add ½ cup sprinkles into the dough.
Lemon Sugar Bars: Add 1 tbsp lemon zest + lemon extract to dough and frosting.
Chocolate Frosted Bars: Add ¼ cup cocoa powder to the frosting.
Holiday Version: Use themed sprinkles + colored frosting.
Almond Bakery Style: Use almond extract in both dough and frosting.
❓ 10 FAQs
Why are my bars dry?
They were overbaked—remove when center still looks soft. Can I make these thicker?
Use an 8×8 or 9×9 pan and bake longer. Can I tint the dough?
Yes—add gel coloring to the dough for themed bars. Can I make them dairy-free?
Use vegan butter and plant milk. Can I skip the frosting?
Yes—they’re sweet enough to enjoy plain. Can I freeze the finished bars?
Yes, but frosting might firm up—wrap tightly. Why is my frosting too sweet?
Add an extra pinch of salt or more milk. How do I get sharp, clean slices?
Chill bars for 20 minutes before cutting. Can I use brown sugar?
A tablespoon adds great flavor—don’t replace all of it. Can I make them ahead?
Yes—bake one day ahead and frost before serving. 🏁 Conclusion
These Sugar Cookie Bars are soft, buttery, beautifully frosted, and incredibly easy to make—offering all the charm of decorated sugar cookies with a fraction of the work. Perfect for gatherings, gifting, or any sweet craving, they’re sure to become a go-to dessert favorite.
They were overbaked—remove when center still looks soft. Can I make these thicker?
Use an 8×8 or 9×9 pan and bake longer. Can I tint the dough?
Yes—add gel coloring to the dough for themed bars. Can I make them dairy-free?
Use vegan butter and plant milk. Can I skip the frosting?
Yes—they’re sweet enough to enjoy plain. Can I freeze the finished bars?
Yes, but frosting might firm up—wrap tightly. Why is my frosting too sweet?
Add an extra pinch of salt or more milk. How do I get sharp, clean slices?
Chill bars for 20 minutes before cutting. Can I use brown sugar?
A tablespoon adds great flavor—don’t replace all of it. Can I make them ahead?
Yes—bake one day ahead and frost before serving. 🏁 Conclusion
These Sugar Cookie Bars are soft, buttery, beautifully frosted, and incredibly easy to make—offering all the charm of decorated sugar cookies with a fraction of the work. Perfect for gatherings, gifting, or any sweet craving, they’re sure to become a go-to dessert favorite.
