Combine flour, salt, baking powder, and cinnamon in medium bowl.

In a large bowl, mix eggs, oil, and sugar until fluffy. Add vanilla and mix once more. Add the dry ingredients to the wet ingredients and mix on low speed until combined. Fold in chocolate chips. Scoop into a bag or container and refrigerate overnight or for two hours.

Preheat oven to 350 F.

On a parchment lined baking sheet, scoop out 3 mounds of batter. Form each mound into an oval shaped loaf with flattened edges. (Like a rounded corner rectangle).

Bake for 25 minutes.

Remove from oven and carefully cut loaves into 1 inch thick pieces. Turn each piece on its side. Bake for another 10 minutes.