Make this recipe a recipe that people in that category can eat. categories: ['gluten_free'], recipe: preheat oven to 350 degrees f. melt 2 tbsp butter on medium heat. stir in 1 tbsp flour. add the milk in slowly, constantly stirring. stir until it's all well blended and a little bit thickened. add salt and pepper to taste. grease a baking dish. slice potatoes very thin and chop onions finely too. alternate layers of onion and potato. pour sauce over everything. cover with bread crumbs. sprinkle melted butter over it all. bake covered for 1 hour. uncover and bake for 15 minutes more.

Target recipe: layer potatoes, flour, milk, and salt and pepper (if desired) in a large casserole dish in several layers, then top with cheeses and paprika. bake at 350°f for 1 1/2 hours. optional crockpot method: spray crock pot with non-stick spray. layer ingredients in crockpot as directed for oven method. cook on high about 5 hours, until potatoes are tender. all cooking times are approximate. preparation time allows for peeling and slicing potatoes. cooking time is for oven method.