In a large bowl, add all of your ingredients besides the chocolate chips. Mix until well combined.
Line a 9x7 (or similar) baking dish with plastic wrap. Press the dough firmly into the rectangle shape of the dish, making an even layer.
*Note* If you use a smaller baking dish, just make sure to cut into fewer bars.
Top with chocolate chips (if using).
Allow to sit in the freezer for about 30 minutes before cutting into 12 bars.
Store in the fridge, as they will soften at room temperature.
Serving Size 1