Catherine Ruehle is the author of "Let Us All Eat Cake: Gluten-Free Recipes for Everyone's Favorite Cakes," which has been a No. 1 best-seller on Amazon. During her cake career, Catherine appeared on "Food Network Challenge," "My Fair Wedding" with David Tutera, "Whose Wedding Is It Anyway," and in magazines such as The Knot and Food Network Magazine. After being diagnosed with rheumatoid arthritis, Catherine closed her celebrated cake business, Sublime Bakery. She is now a board-certified holistic health counselor and the owner of a new business, A Well-Nourished Life, offering culinary wellness services to private clients all over the United States. Her website is CatherineRuehle.com.