Put a thin film of oil in a large skillet over medium heat.
Form the oatmeal into 1-inch balls and flatten the balls into patties.
(If the patties don't hold their shape, stir flour into the oatmeal, 1 tablespoon at a time, and try again.)
When the oil is hot, add the patties to the pan in a single layer (you may have to work in batches).
Fry the patties until crisp and golden, 3 to 5 minutes per side.
Drain the fritters on paper towels and serve warm or at room temperature.
Time: 20 minutes with cooked oatmeal