21 Day Fix New England Clam Chowder

Name: 21 Day Fix New England Clam Chowder
Ingredients: 5 teaspoon butter, divided; 8 slices turkey bacon, chopped into small pieces; 2 celery ribs, chopped (about 1/2 cup); 1 small onion, chopped (about 1 1/2 cups); 4 garlic cloves, minced; 1 medium potato, peeled and chopped into small pieces (about 1 1/2 cups); 1 teaspoon salt; pepper; 1/2 Tbs dried thyme (1 Tbs for Instant Pot!); 6 cups chopped cauliflower (about 1 lb and 3-4 oz after it's chopped/stem removed); 1 bottle (8 ounces) clam juice; 3 cups low sodium chicken broth (only 1/2 cup for Instant Pot version); 2 cups 1% or 2% milk (1 3/4 cups for Instant Pot version); 1 can (10 ounces) fancy whole baby clams or 2 (6.5 oz) cans chopped clams (if you must), drained and rinsed