Using a handheld beater, beat peanut butter, canola oil, brown sugar, white sugar and vanilla until well combined. Add egg and beat until well combined.
Mix remaining dry ingredients together (except the chocolate chips). Add dry ingredients to peanut butter mixture and beat on medium-low setting until well combined. Add chocolate chips and mix with wooden spoon until just combined.
Cover cookie dough and chill in fridge for 15 minutes. In the meantime, preheat oven to 350 degrees.
Divide cookie dough into 10 equal parts (just under 1/3 cup each). Form into a ball and press down lightly on cookie sheet. Bake for 12 minutes.
Remove from oven and place entire cookie sheet on rack to cool for 7-10 minutes. Cookies will appear to be under-cooked, avoid the temptation to return them to the oven! After cookies cool on the sheet you can move them to wire rack to complete their cooling.
