This gluten free chocolate chip cookie bars recipe turns your favorite chocolate chip cookies into buttery little handheld bars. Packed with semisweet chocolate, a good amount of salt, and plenty of brown sugar, it's impossible to stop at one!
Grease a 13x9" baking pan with oil or butter and line the bottom with parchment paper.
In a large bowl, whisk together the oat flour, salt, baking powder, and baking soda.
Melt the butter and let cool slightly, Then whisk in the brown sugar, granulated sugar, and vanilla until the sugar slightly dissolves. Whisk in the eggs one at a time until smooth.
Stir in the dry ingredient mix until a soft dough forms. Fold in the chocolate chips.
Spread the dough into the baking pan, using your hands or a rubber spatula to press it out into an even layer. Preheat the oven to 325°.
Rest the dough while the oven heats, then place the pan in the oven and bake until the top is golden brown and a tester inserted into the center comes out clean apart from any smudges of melted chocolate, 30–35 minutes.
Let cool in pan at least 1 hour before cutting into an 8x3 grid to make 24 rectangles.