Preheat oven to 350 degrees.
Pour heavy cream into a medium saucepan and add the diced jalapeños.
Simmer over medium-low heat for 10 minutes. Do not let boil.
Peel and thinly slice potatoes using a mandolin.
Grease a 2 quart cooking dish.
Put a layer of potatoes, a sprinkle of cheese, and a bit of the jalapeño cream mixture. Season with salt and pepper. Continue to layer potatoes, cheese, cream, salt and pepper until all ingredients are used up.
Top with a bit more shredded cheese.
Bake in the oven for 1 hour 15-30 minutes or until potatoes are cooked through.
Let set a few minutes and enjoy!
