Instant Pot Garlic Parmesan Mashed Potatoes - Sprinkles & Sea Salt

Ingredients

• 2lbs red potatoes
• water to cover potatoes (about 4 cups)
• 3 tsp salt, divided
• 4 tbsp butter, divided
• 1 shallot, chopped
• 6 cloves garlic, crushed
• 1/2 cup whole milk
• 1/4 cup heavy cream
• 1/4 cup sour cream
• 1 cup shredded parmesan cheese
• 1/2 tsp oregano
• 1/2 tsp garlic salt
• dash of black pepper