Preheat the oven to 350 degrees F. Line an 8×8 baking pan with parchment paper.
In a large baking bowl, whisk cornstarch and milk. Add in melted coconut oil, agave, cane sugar, and vanilla. Mix.
Add almond flour, coconut flour, baking soda, and salt. Mix with a spoon until a dough forms. Stir in ¼ cup white chocolate chips. Pour dough into pan and press down until even.
Bake for 15-18 minutes until the edges are golden brown. Let cool for 30 minutes.
Melt the rest of the white chocolate then spread on top and sprinkle on the sprinkles.
Let set in freezer for 10 minutes then cut into bars carefully.
Enjoy!
Notes
Make sure to bake the sugar cookie bars until the edges are golden brown.
Wait until the bars are completely cooled before adding the white chocolate (or vegan cream cheese buttercream) on top.
Allow white chocolate and sprinkles to set in the freezer for 5-10 minutes, then cut into the bars carefully.