Preheat oven to broil. Line a baking sheet with parchment paper.
Place grapefruit slices onto baking sheet. Sprinkle with coconut sugar and cinnamon. Broil for 5-7 minutes, until golden. Remove from heat.
Meanwhile, add frozen berries, honey and ginger into a small pot. Bring to a boil and simmer for 5-10 minutes, until berries have softened.
To assemble, divide yogurt into two small bowls. Top with grapefruit, berry compote, granola and a drizzle of honey (optional). Serve immediately.