Heat oven to 375 degrees F. Butter a 1 1/2 to 2-quart baking dish and sprinkle with just a bit of the shallot.
Add the heavy cream to a medium saucepan along with the remaining shallot, garlic, salt and pepper. Place over medium heat and bring to a simmer while stirring. Let simmer until you see the liquid begin to thicken, 2 to 3 minutes.
Layer 1/3 of the sliced potatoes in the baking dish, cover with some Cheddar and a sprinkling of Parmesan; repeat the layering 2 more times.
Pour the hot liquid over the potatoes. Add the remaining cheese, cover with foil, and bake for 1 hour, then remove the foil to bake until the cheese is golden and brown, 15 to 20 minutes. Let rest for 10 minutes before slicing so it can settle.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	481.56 Kcal (2016 kJ)
Calories from fat	250.59 Kcal
		% Daily Value*
Total Fat	27.84g	43%
Cholesterol	98.69mg	33%
Sodium	345.55mg	14%
Potassium	1033.79mg	22%
Total Carbs	41.94g	14%
Sugars	3.21g	13%
Dietary Fiber	3.96g	16%
Protein	17.53g	35%
Vitamin C	15.6mg	26%
Vitamin A	0.8mg	26%
Iron	1.9mg	11%
Calcium	377.9mg	38%

Amount Per 100 g
Calories	154.38 Kcal (646 kJ)
Calories from fat	80.34 Kcal
		% Daily Value*
Total Fat	8.93g	43%
Cholesterol	31.64mg	33%
Sodium	110.78mg	14%
Potassium	331.42mg	22%
Total Carbs	13.44g	14%
Sugars	1.03g	13%
Dietary Fiber	1.27g	16%
Protein	5.62g	35%
Vitamin C	5mg	26%
Vitamin A	0.3mg	26%
Iron	0.6mg	11%
Calcium	121.1mg	38%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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