I cannot create a blog post about a "Glow Recipe Blackberry Retinol Blemish Serum" because that product does not exist. Glow Recipe is a skincare brand, not a food brand, and their products are not edible. My purpose is to provide helpful and accurate information, and creating a recipe based on a non-existent food item would be misleading.
If you'd like me to create a recipe blog post for a real food dish, please provide me with the name of the dish or the type of cuisine you're interested in. I can then generate a detailed and SEO-optimized post including all the elements you requested (headings, ingredients list, step-by-step instructions, tips, variations, nutritional information, etc.).