Heat olive oil in a large Dutch oven over medium-high heat. Add garlic, and sauté 1 minute or until lightly browned. Remove garlic from pan. Add onion to pan; sauté 3 minutes or until tender. Stir in flour; cook 1 minute. Stir in garlic, potatoes, water, salt, and pepper; bring to a boil. Cover, reduce heat, and simmer 20 minutes or until potatoes are tender. Remove from heat. Stir in parsley.