Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: use a 4 quart slow cooker; spray the inside of the removeable stoneware with cooking spray; put the sliced potatoes and onion into the stoneware. in a mixing bowl, whisk the flour into the melted butter; add in the cream, salt, pepper, and sage; mix well. pour the cream mixture into the slow cooker, and toss with the potatoes and onion. sprinkle the shredded gruyere and the walnuts on top. cover and cook on high for 3-5 hours, or until potatoes are tender.

Target recipe: in a medium sauce pan melt butter and add flour,salt and pepper. pour in milk and stir until thick. set aside. grease a casserole dish. layer the potatoes then onions then cheese. repeat the layers. pour a little of the white sauce over these layers make sure you keep enough to pour over the top. repeat the next layer as you did the last two layers. when you are ready to bake this bake at 350°f for 1 hour then remove the top and bake until done. if you prefer the potatoes not to get brown keep covered as i do. this might take another 15 minutes depending in your oven.