Step 1

Preheat oven to 350 degrees. Bring a large pot of water to a boil and add sliced potatoes. Parboil for about 5 minutes. Drain well.

Step 2

Heat a skillet over medium heat. Add butter and chopped onions. Let cook until onions are tender, then add minced garlic. Cook for an additional minute. Stir in flour, salt, pepper and dry rubbed sage. Slowly add the milk while stirring frequently. Remove from heat.

Step 3

Layer half of the potatoes in a lightly greased 9"x13" baking dish followed by about half of the sauce and shredded cheese. Layer remaining potatoes and top with remaining sauce and shredded cheese.

Step 4

Cover dish with foil and bake for 25 minutes. Remove foil and cook for an additional 25 minutes until top is golden and bubbly. Remove scalloped potatoes from the oven and let cool. Enjoy!