You are a food and beverage and email marketing expert. Write a detailed, 2000-word blog post with 10 personalized recipe re-engagement email templates. For each template, include: 1) Inactivity period, 2) Recipe type (based on past purchases), 3) Subject line options, 4) Email body with recipe, 5) Call-to-action buttons (get recipe), 6) Personalization, 7) Metrics to track (click rate, re-engagement), 8) A/B testing ideas, 9) Examples, 10) Ingredient sourcing.