Preheat oven to 350F. Place 9 muffin liners in muffin pan and set aside.
In a large bowl, stir together flour, cornmeal, sugar, baking powder, and vanilla salt.
In a separate but smaller bowl, whisk together Passion Fruit Greek Yogurt, egg, and oil. Add to dry ingredients and mix.
Depending on how wet or dry the batter is, add water until consistency is sturdy but dropable into muffin liners.
Fill liners with 1/4 cup each of batter. This batter made 9 muffins. Bake for 20 minutes until muffins bounce back to the touch. Cool and glaze by melting guava paste in the microwave for 20 seconds. Serve and enjoy!