4 mediums potatoes, peeled and quartered
2 cups chopped kale
4 tablespoons butter, divided
3 tablespoons milk
1/4 teaspoon salt
1/8 teaspoon pepper
1/4 cup chopped onions
Cook potatoes in a pot of boiling water until tender; drain, reserving water.
Place potatoes in a large bowl and mash potatoes with a hand masher or put through a ricer. Add 2 tablespoons butter, milk, salt and pepper to potatoes and gently mix until combined.
Add chopped kale to the reserved potato water. Cook 6-8 minutes or until tender. Drain well and chop.
Meanwhile, sauté chopped onions in 2 tablespoons butter on medium-high until slightly brown. Add to potato mixture and combine.