Indulge in soft, chewy Snickerdoodle bars topped with a creamy chai spice cream cheese frosting. This recipe combines the classic cinnamon flavors with a warm, spiced twist!
Using a stand or hand mixer, cream the butter and sugars until light and fluffy, 3 to 5 minutes.
Mix in eggs one at a time. Add vanilla.
Whisk together dry ingredients in a small bowl; flour, cream of tartar, baking soda, cinnamon, and salt.
Add dry ingredients to wet and mix on low until combined.
Line a baking dish with parchment paper or lightly grease the pan with a baking spray. Spread the dough into an even layer in the pan. Bake at 350° for 25-30 minutes or until a toothpick comes out clean from the center. Do not overbake.
For frosting, combine all ingredients in a mixing bowl and mix on high until combined and smooth. Use a teaspoon of milk at a time to thin out as desired. Allow the bars to cool completely, and remove them from the pan before frosting. To slice, use a sharp knife and wipe down the blade between each slice.
Notes
For the frosting, be sure to allow the butter and cream cheese to be fully at room temperature. The frosting will not be smooth unless it can be creamed when fully soft.Store in an airtight container for up to 3 days. These bars can also be frozen, without frosting, for up to 3 months. Make frosting and top after they've thawed in the refrigerator for 24 hours.