Ingredients
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2½–3 lbs potatoes (Yukon Gold or Russet), thinly sliced
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12–14 oz smoked sausage (kielbasa or andouille), sliced into rounds
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1 small onion, thinly sliced
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2 tbsp butter
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2 tbsp all-purpose flour
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2 cups milk (warm)
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1 cup heavy cream
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1½ cups cheddar cheese, shredded
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½ cup Parmesan cheese, grated
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2 cloves garlic, minced
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1 tsp salt (adjust to taste)
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½ tsp black pepper
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½ tsp paprika (smoked paprika is great here)
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½ tsp dried thyme (optional)
Instructions
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Prep & preheat
Preheat oven to 190°C / 375°F. Grease a baking dish. -
Brown the sausage
In a skillet over medium heat, cook sausage slices until lightly browned. Remove and set aside. -
Make the sauce
In the same skillet, melt butter. Add onion and cook until soft (3–4 minutes).
Stir in garlic and cook 30 seconds.
Sprinkle in flour and cook 1 minute. -
Cream it up
Slowly whisk in milk and cream. Cook until slightly thickened.
Stir in salt, pepper, paprika, thyme, cheddar, and Parmesan until smooth. -
Layer it
Arrange half the potatoes in the baking dish.
Top with half the sausage and pour over some sauce.
Repeat layers, finishing with sauce on top. -
Bake
Cover tightly with foil and bake 45 minutes.
Uncover and bake 20–25 minutes more until potatoes are tender and top is golden. -
Rest & serve
Let sit 10 minutes before serving so it sets up nicely.