Preheat an electric griddle to 375°F or a large frying over medium-low heat.
Melt the butter and honey in a microwavable bowl.
Then whisk together the butter/honey and the egg in a medium-large mixing bowl. Whisk in the buttermilk.
Add in the oat flour, ground flax seed, and baking powder. Whisk until smooth.
Allow to rest for 5 minutes. The batter will be fluffy and thick.
Pour about ⅓ cup batter onto the preheated griddle/pan. Cook until a medium golden brown on the first side (about 3 minutes).
Flip and cook one minute further.
Notes
If you don’t have pre-ground oat flour, you can add regular or quick cooking oats to a blender and blend on low to create an oat flour. Approximately 1 ½ cups oats will yield 1 ¼ cup oat flour.