Over medium heat, melt 1 tablespoon butter and 2 tablespoons regular butter. Add carrots, celery, and onion.
Next, add mushrooms and minced garlic, cook for 3-5 minutes.
Slowly whisk in flour until fully blended.
Gradually add turkey or chicken broth. Stir for 2-3 minutes or until mixture thickens. Let simmer for 30 minutes.
Add wild rice and chopped turkey. Continue cooking until tender. The mixture should reach a simmer. Whisk frequently to avoid burning and simmer for another 30 minutes.