Great New England Clam Chowder

I originally got this recipe from the Copycat web site. It is supposed to be a copy of Red Lobster's clam chowder. After making it I think it is better than theirs.

• Ready In: 1 hr
• Serves: 4-6

Ingredients

• 2  cups russet potatoes (peeled and cubed 1/2-inch x 1/2-inch pieces)
• 1  cup butter
• 2  tablespoons  diced green onions (bulb only)
• 1⁄4 cup flour
• 2 (6 1/2ounce) cans minced clams (with juice)
• 1  teaspoon salt (or to taste)
• 1  teaspoon black pepper
• 1  teaspoon garlic
• 12  ounces half-and-half
• 1⁄2 cup  whole milk
• 1⁄3 cup  clam juice
•  fresh parsley (minced for garnish)

Directions

1. Place potatoes in saucepan and cover with water, cook on medium heat until tender.
2. Remove potatoes from heat, drain and set aside.
3. In 2 quart saucepan on medium low heat melt butter, add diced onions, cook until onions are slightly clear in color.
4. Add flour to butter and stir briskly.
5. Mixture will start to thicken.
6. Add half and half a little at a time while stirring briskly.
7. Mixture will be creamy and will look like thick cream.
8. Place salt, clams and juice, potatoes, bottled clam juice and milk with mixture.
9. On medium low temperature bring chowder to a slow boil.
10. Turn temperature down to low and let chowder simmer gently for 15 minutes, stirring frequently.