1Place potatoes in 4-quart saucepan; add enough water to cover potatoes. Add 1 teaspoon salt. Heat to boiling; reduce heat. Simmer uncovered 20 to 30 minutes or until tender; drain. Mash with potato masher or electric mixer on low speed.
2While potatoes are cooking, melt butter in 1-quart saucepan over medium-low heat. Cook garlic in butter 3 to 4 minutes, stirring frequently and being careful not to brown butter, until garlic is very soft. Stir in milk and herbs. Cook until thoroughly heated.
3Add milk mixture to mashed potatoes; beat until smooth and creamy. Season with salt and pepper to taste.