Step 1Preheat the oven to 425° and line a muffin pan with 10 muffin cups.
Step 2Mix the oats, all-purpose flour, ground flaxseed, baking soda, and baking powder together in a medium mixing bowl.
Step 3In a separate bowl, whisk together the vanilla, maple syrup, egg, milk, Greek yogurt, and avocado oil.
Step 4Pour the wet ingredients into the dry ingredients and mix until well combined.
Step 5Gently stir in the blueberries and spoon the muffin mixture into the baking cups.
Step 6Insert the muffin tin into the oven and bake for 15–20 minutes or until a toothpick inserted into the center comes out clean.
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