Beer Simmered Brats with Peppers and Onions

Ingredients

• 1 lb Potatoes, baby red (sub new potatoes)
• 1 stalk Celery, chopped
• 1 clove Shallots, chopped
• 1 Tbsp Parsley, chopped
• 1 Tbsp Oil, olive
• 2 tsp Vinegar, apple cider
• 1 tsp Mustard, use large grain mustard if you have it (sub Dijon)
• 1/2 tsp Sugar
• 1 Bell peppers, red, sliced
• 1 Onions, medium, sliced
• 2 cups Beer, any type (sub stock)
• 2 Tbsp Butter
• 4 links Sausage, German-style bratwurst (sub raw sausage links of choice)
• 1 Tbsp Oil, cooking
• 4 Hoagie buns (opt) (sub hot dog buns)
• 4 Tbsp Mustard, spicy or honey-mustard (sub Dijon)