In a large bowl, add the milk and old-fashioned oats, stir to combine. Allow the mixture to sit for 5 minutes until the oats have softened.
1½ cups whole milk, 1 cup whole old-fashioned oats
Stir the oil and large egg into the softened oat mixture.
2 tablespoons oil, 1 large egg
In a separate smaller bowl, whisk together the all-purpose flour, brown sugar, and baking soda.
1½ cups all-purpose flour, 2 tablespoons packed light brown sugar, 1 teaspoon baking soda
Add the dry ingredients into the bowl of wet ingredients and stir just until combined and mixed together.
Heat a griddle or skillet pan over medium heat. Add a pat of butter (as much or little as wanted) or oil to the pan and allow it to melt.
butter or oil
Pour about 1/2 cup of the oatmeal pancake batter onto the griddle or skillet pan. Cook pancakes until the bottom is golden brown, flip the pancake over and cook until the bottom is golden brown. Repeat this with the rest of the batter, using more butter as needed.
Serve warm with butter, drizzle of maple syrup, powdered sugar, fresh berries, and/or jam.