On a 6-quart Instant Pot, select Normal/Medium Sauté. Add the butter and melt, then cook, stirring, until golden brown and has a nutty aroma, 2 to 3 minutes. Add the onions, garlic, ginger, cinnamon and ½ teaspoon salt. Cook, stirring, until the onions are soft and golden brown at the edges, 10 to 12 minutes. Stir in the paprika, fennel seeds, coriander, curry powder, garam masala, 2 teaspoons salt and 1½ teaspoons pepper, then cook until fragrant, about 30 seconds. Add 1 cup water and scrape up any browned bits. Add the beef and stir combine.