Preheat oven to 375ºF. Line a baking sheet with parchment paper.
In a large bowl, whisk together oat flour, oats, baking powder, baking soda, cinnamon, and salt.
In a separate bowl, whisk together milk, eggs, melted butter, honey, and vanilla extract.
Add wet ingredients to dry ingredients and mix until just combined. Do not overmix.
Scoop about ¼ cup of batter onto the prepared baking sheet and spread into a 4-inch pancake. Repeat with remaining batter.
Bake for 18-20 minutes, until golden-brown and cooked through.
Serve with butter, syrup, and your favorite toppings.