Step 1

Peel the sweet potatoes and cut into 1-inch cubes. Place in a large saucepan and cover with cool water so that the water covers the potatoes by 1 inch. Add 1 teaspoon salt. Bring to a simmer over medium-high heat. Continue simmering, adjusting the heat as needed, until the sweet potatoes are fork-tender, about 10 to 12 minutes. Drain, then return the potatoes to the pot.

Step 2

Add the half and half and chipotle chile powder, cinnamon, nutmeg, and remaining 3 teaspoons salt.

Step 3

Mash to your desired consistency.

Step 4

Immediately add the Greek yogurt, maple syrup, and butter. Stir until evenly combined. Taste and adjust spices and salt as desired.

Step 5

Transfer to a serving bowl and top with thyme. Enjoy warm.