Scalloped Potatoes without russet tahini

2 lbs tiny new potatoes , sliced 1/4-inch thick 1 cup chopped onion 3 garlic cloves , minced 3 tablespoons olive oil , divided 3 tablespoons all-purpose flour[...]

8 medium potatoes , unpeeled 1 small onion , thinly sliced 3 tablespoons butter 12 ounces sharp cheddar cheese , grated 3/4 cup milk 1/2 cup chicken broth 2[...]

8 medium potatoes , unpeeled 1 small onion , thinly sliced 3 tablespoons butter 12 ounces sharp cheddar cheese , grated 3/4 cup milk 1/2 cup chicken broth 2[...]