Pour broth & 1 cup milk into crock pot. Add sliced potatoes & corn.
In a greased (with pan spray) large non-stick saute pan, brown sausage. Add to crock pot. Re-spray pan & put celery, carrots, onion, & garlic in now empty saute pan & add spices. Let mixture sweat for a couple minutes. Add flour until it comes together. Gradually add ½ cup milk until it thickens up. Add to crock pot.