Meatballs:In a medium bowl mix the turkey with all other ingredients.Form balls and place on a plate. In a large skillet heat the olive oil over medium high heat.
Add meatballs and without moving or turning the meat, allow it to brown for about 3 minutes. Turn meatballs and brown other side.
Place the butter in a sauce pan and sauté onion and garlic for about 2 minutes.
Add the remaining ingredients and cook for about 7 minutes or until guava paste dissolves, stirring frequently.
Remove from heat.
Place in a blender and puree until smooth consistency.