This healthy peanut butter granola recipe bakes in 25 minutes with 6 ingredients: rolled oats, natural peanut butter, maple syrup, cinnamon, vanilla, and salt. No oil, no refined sugar, naturally gluten-free and vegan. Baked low and slow for extra chunky clusters!
Preheat. Heat the oven to 325°F and line a large baking sheet with parchment paper.
Mix the dry ingredients. In a large bowl, stir together the rolled oats, cinnamon, salt, and chopped peanuts (if using).
Whisk the wet ingredients. In a small bowl, whisk the peanut butter, maple syrup, and vanilla until smooth.
Combine. Pour the wet mixture into the dry and stir until every oat is coated.
Press onto the pan. Transfer the mixture to the prepared baking sheet. Use a spatula or the back of a measuring cup to press it into a tight, even layer. The tighter you pack it, the bigger the clusters.
Bake. Bake for 15 to 18 minutes, stirring once at the 8 minute mark and pressing it back down flat. The edges should be golden brown when it's done.
Cool completely. Let the granola cool undisturbed on the pan for at least 30 minutes. Don't touch it. This is what creates the chunky clusters.
Break and store. Once fully cool, break into clusters with your hands. Store in an airtight jar at room temperature for up to 3 weeks.
Notes
Peanut size matters. Chop the roasted peanuts small (about the size of a sunflower seed) so they don't break up the oat clusters when you press the granola down. Bigger pieces create gaps and you'll end up with fewer chunks.Peanut butter: Use natural, drippy peanut butter (just peanuts and salt). Jif or Skippy will work but the granola will be less chunky and slightly sweeter.Maple syrup swap: Honey works one to one, but browns faster. Check the granola at the 12 minute mark to avoid scorching.For maximum clusters: Press the granola down hard before baking, stir only once, and let it cool completely before touching.Freezing: Freeze in a sealed bag for up to 3 months. Scoop straight from frozen, no thawing needed.Make it nut free: Swap peanut butter for sunflower seed butter and skip the roasted peanuts.