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Gluten Free & Vegan Sugar Cookie Bars

  • Author: Paige
  • Prep Time: 15
  • Cook Time: 30
  • Total Time: 45 minutes
  • Yield: 12 cookie bars 1x
  • Category: cookies
  • Method: baking


The best part of sweet sugar cookies made in bar form. These gluten-free and vegan sugar cookie bars are full of sweet vanilla flavor, soft crumb and rich fluffy vegan buttercream. An easy and delicious recipe for everyday or special occasions. 


Units Scale
  • 1 cup of vegan butter
  • 1 cup of sugar
  • 2 tsp of vanilla extract
  • 4 tbsp of water
  • 1 tbsp of flax meal
  • 1 tsp of baking powder
  • 1 tsp of baking soda
  • 1/2 tsp of salt
  • 1/4 cups of dairy free milk
  • 3 cups of gluten-free flour


  • 5 tbsp of vegan butter
  • 1 tsp of vanilla extract
  • 5 cups of powdered sugar
  • 34 tbsp of dairy free milk or water


  1. Preheat your oven to 350°f and lightly grease your 8×8″ baking pan
  2. In a bowl cream your vegan butter with your sugar until combined and fluffy
  3. While your sugar is creaming with your butter, in a small bowl whisk your 1 tbsp of flax meal with your 4 tbsp of water to form the flax egg – let this sit for at least 4 minutes 
  4. Next, add your vanilla extract, baking powder, baking soda and salt to your sugar and butter mixture
  5. Once that is combined, add your flax egg to your dough along with your 1/4 cup of dairy free milk
  6. Finally, add in your gluten free flour until the dough forms, but don’t over mix your dough too much – the majority will stick together and some will look dry
  7. Pour your batter into your prepared pan, using your fingers or the back of a measuring cup, evenly distribute the dough evenly in the pan pressing down slightly to compress the dough slightly
  8. Bake for 25-30 minutes until it looks puffed and cooked through
  9. Remove from the oven and let cool completely before frosting
  10. In your mixing bowl using a whisk attachment, whisk your vegan butter, vanilla extract, dairy free milk until the butter is fluffy
  11. Next add in your 5 cups of powdered sugar, 1 cup at a time
  12. If the frosting looks dry add in dairy free milk 1 tsp at a time while mixing on medium 
  13. Once your cookie has fully cooled, layer a thick layer of frosting over the top of your cookie
  14. Top with your favorite sprinkles and enjoy!

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