Sweet Potato Gratin with Stone Ground Mustard | Silver Spring Foods

Ingredients

• 3 large sweet potatoes
• 5 TBLS butter
• 5 TBLS flour
• 4 cups whole milk
• 1 cup aged cheddar cheese (shredded)
• ¼ tsp celery salt
• ¼ tsp smoked paprika
• 1 tsp garlic powder
• 1 tsp onion powder
• 1 TBLS Silver Spring Stone Ground Mustard