Combine all dry ingredients in a bowl and set aside.
In a sauce pan, bring honey to a boil, then immediately remove from heat and add peanut or other nut better and vanilla. Stir until smooth.
Pour nut butter mixture into bowl of dry ingredients and stir until combined.
Add any optional mix-ins (if using chocolate chips, make sure oat mixture is cooled).
Press into ungreased 9"x13" glass dish or roll into 1-1/2" balls on parchment paper.
Cool in refrigerator before cutting into squares and storing in container. Keep refrigerated.