Cookie Dough Bark

Prepare: Line a small sheet pan or 8x8-inch baking dish with parchment paper.
Blend oats: Add 1 1/2 cups oats to a blender or food processor and blend well until you get a fine powder. You'll need 1 ½ cups oat flour.
Add ingredients: In a medium bowl, stir together 1 1/2 cups oat flour, 1/4 cup melted butter, 2 Tablespoons brown sugar, 3 Tablespoons maple syrup, 1 teaspoon vanilla, and 1/4 teaspoon salt until a soft dough forms. Fold in 1/4 cup mini chocolate chips.
Freeze: Press the mixture into an even 1/4-inch layer on the prepared pan. Freeze for 10 minutes.
Make topping: Place 3/4 cup chocolate chips and 1 teaspoon coconut oil in a microwave-safe bowl. Microwave in 20-second intervals, stirring between each, until smooth.
Spread topping: Pour the melted chocolate over the chilled cookie dough layer and spread evenly with an offset spatula or the back of a spoon.
Freeze: Freeze for 30 minutes, or until firm.
Break up and enjoy: Remove from the freezer and let sit for 2 to 3 minutes. Cut into squares with a sharp knife or break into bark pieces.