Mashed Potatoes with roast

1 lb potato , peeled (we used a mixture of russets and Yukon Gold) 1 tablespoon fresh jalapeno, finely minced 1 small carrot , peeled and finely grated[...]

1 cup butter , divided 1/3 cup garlic clove , peeled 1 poblano chile , stems & seeds removed 4 -6 russet potatoes 1 tablespoon salt 1 teaspoon salt 1/4 cup[...]