Line a 9-inch square pan with parchment paper so it hangs over the sides for easy lifting.
Combine dry ingredients
In a large bowl, stir together oats, cinnamon, and salt. Add your mix-ins and stir to coat.
Combine wet ingredients
In a small saucepan or microwave-safe bowl, gently warm the nut butter, honey (or maple syrup), and vanilla until smooth. Let cool slightly.
Mix and press
Pour the wet mixture into the dry ingredients and stir until evenly combined — the mixture should feel thick and sticky. Transfer to the pan and press down firmly and evenly with a spoon or the bottom of a glass.
Chill and cut
Cover and refrigerate for at least 1 hour (or overnight). Lift out using the parchment and slice into 16 squares or bars.
Notes
Optional Toppings
Drizzle with melted dark or white chocolate
Sprinkle with flaky sea salt before chilling
Add a swirl of nut butter across the top
Press dried fruit or coconut flakes onto the surface before setting
Helpful Tips
Gluten-free: Use certified gluten-free oats.
Nut-free: Swap nut butter for sunflower seed butter and use seeds instead of nuts.
Vegan: Use maple syrup instead of honey.
Storage: Keeps 1 week at room temp, 2 weeks refrigerated, or up to 3 months frozen.