For topping: Toss first 4 ingredients in medium bowl. Add butter; using fingertips, rub in until well blended. Cover; chill. DO AHEAD: Can be made 1 day ahead. Keep chilled.
For pudding: Preheat oven to 400°F. Roast potatoes on baking sheet until tender, 45 to 60 minutes. Cool. Cut in half lengthwise. Scoop flesh into bowl; mash. Transfer 4 cups potatoes to large bowl. DO AHEAD: Can be made 1 day ahead. Cover; chill. Bring to room temperature before continuing.
Preheat oven to 350°F. Butter 13x9x2- inch baking dish. Add half and half and next 5 ingredients to potatoes. Using mixer, beat on low speed until blended. Season with salt and pepper. Add yolks 1 at a time, blending after each addition. Using clean dry beaters, beat whites in another large bowl until foamy. Add salt and cream of tartar. Beat until peaks form. Fold whites into potatoes; spoon into dish. Sprinkle with topping.
Bake pudding until puffed and brown, about 45 minutes. Serve immediately.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	563.79 Kcal (2360 kJ)
Calories from fat	385.39 Kcal
		% Daily Value*
Total Fat	42.82g	66%
Cholesterol	148.58mg	50%
Sodium	243.99mg	10%
Potassium	583.43mg	12%
Total Carbs	39.84g	13%
Sugars	10.85g	43%
Dietary Fiber	4.67g	19%
Protein	8.75g	18%
Vitamin C	7.9mg	13%
Vitamin A	1.5mg	50%
Iron	2.7mg	15%
Calcium	92.4mg	9%

Amount Per 100 g
Calories	238.98 Kcal (1001 kJ)
Calories from fat	163.36 Kcal
		% Daily Value*
Total Fat	18.15g	66%
Cholesterol	62.98mg	50%
Sodium	103.42mg	10%
Potassium	247.3mg	12%
Total Carbs	16.89g	13%
Sugars	4.6g	43%
Dietary Fiber	1.98g	19%
Protein	3.71g	18%
Vitamin C	3.4mg	13%
Vitamin A	0.6mg	50%
Iron	1.1mg	15%
Calcium	39.2mg	9%

* 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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