Cheesy, Mustardy Au Gratin Root Vegetables – Burlap & Barrel

Ingredients

• 2 pounds thinly sliced assortment of potatoes/yam/squash/carrots/celery
• 1 onion, thinly sliced
• 3 Tbsp butter
• 3 Tbsp all-purpose flour
• 1 tsp Andante Mustard Powder
• 2 cups milk
• 1 cup shredded cheddar cheese
• ½ cup shredded gruyere cheese
• Salt to taste
• Fermented White Pepper to taste
• 1/8 tsp ground Grenada Gold Nutmeg
• 1 tsp Purple Stripe Garlic powder (optional)
• 1 tsp chili flakes (optional)