Best Crispy Roast Potatoes

Name: Best Crispy Roast Potatoes
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 1/2 teaspoon baking soda; 2 tablespoons salt; 3 pounds Yukon gold baby potatoes (I like baby potatoes, but you can use large ones and cube them); 1 tablespoon bacon fat (canola or vegetable oil can be used); 1/2 tablespoon rosemary (fresh, minced); 3 cloves garlic clove (minced); 1/2 teaspoon black pepper (freshly cracked); 1/8 teaspoon fresh thyme; 1/4 teaspoon salt; 1/4 teaspoon black pepper (freshly cracked); 1 tablespoon flour; 2 tablespoon Parmesan cheese