Preheat the oven to 325℉. Line a rimmed baking sheet with parchment paper, or use a nonstick baking sheet.
Mix the dry ingredients in a large bowl (oats through salt). Mix the wet ingredients (syrup through vanilla) in a smaller bowl. Stir the wet ingredients into the dry ingredients. Then stir in the cranberries and pepitas.
Spread the mixture out onto your baking sheet. Bake until golden- stirring halfway through baking- 20 minutes, then stir, then bake another 20 minutes. If it's not quite golden and crisp, bake 5 to 10 minutes more. It will get crisper as it cools. Let it cool and then store it in a covered container to nibble on for a couple of weeks.