3 medium leeks, trimmed, washed, and thinly sliced
5 tablespoons butter (divided use)
1/2 cup chicken broth
2 teaspoons salt, divided (or to taste)
1/8 teaspoon ground black pepper
2 1/2 pounds potatoes, russet or baking
1 cup half-and-half (or combine 1/2 cup of milk with 1/2 cup of light or whipping cream)
Instructions
Melt 3 tablespoons of butter in a skillet over medium heat. Saute the leeks, stirring, until wilted. Add the kale and chicken stock. Cover the pan and reduce the heat to low; simmer for about 30 minutes, or until the vegetables are very tender. Add the salt, to taste, and the black pepper. Add the half-and-half or cream; remove from heat and set aside.
Meanwhile, peel the potatoes and cut them into chunks. Rinse the potatoes and put them in a medium saucepan; cover with water and add the remaining 1 teaspoon of salt.
Bring the potatoes to a boil over high heat. Reduce heat to medium-low, cover the pan, and continue cooking until tender, about 20 minutes. Drain the potatoes thoroughly and transfer to a large bowl.
Heat the kale and cream mixture until hot. Add to the drained potatoes along with the remaining 2 tablespoons of butter and mash by hand or with a mixer.