Fluffy Roasted Garlic Mashed Potatoes

INGREDIENTS

Russet potatoes , about 4 pounds

head fresh garlic

1 tbsp

olive oil

1/2 tsp

kosher salt

1 tsp

lemon thyme , finely chopped

4 tbsp

butter

1 cup

crème fraîche

3/4 cup

heavy cream , as needed

1 tbsp

lemon juice , freshly squeezed

1 tsp

lemon zest , freshly grated

1/4 cup

sun-dried tomatoes in olive oil , chopped

1/4 cup

parmesan cheese powder (see tips)

3 tsp

salt

1 tsp

white pepper , freshly ground