Quick Recipe Version (TL;DR)
Quick Ingredients
- 1 large grapefruit (about 14–16 oz / 400–450 g), halved
- 2 tsp packed light brown sugar
- 1/2 tsp ground cinnamon
- 1/8 tsp kosher salt
- 1 tsp unsalted butter, melted (optional but delicious)
- 1/3 cup granola (about 35 g), crunchy and chunky
- 2 tbsp plain Greek yogurt or vanilla yogurt (optional, for serving)
Do This
- 1. Set oven rack 6 inches from broiler; preheat broiler on HIGH for 5 minutes.
- 2. Slice a thin sliver off the rounded side of each grapefruit half so it sits level (don’t cut into the segments).
- 3. Place halves on a foil-lined baking sheet; loosen segments with a small knife if desired.
- 4. Mix brown sugar, cinnamon, and salt; sprinkle evenly over grapefruit. Drizzle with melted butter if using.
- 5. Broil 4–6 minutes, rotating the pan once, until bubbling and caramelized (watch closely).
- 6. Rest 2 minutes, then top with granola (and a spoonful of yogurt if you like). Serve warm.
Why You’ll Love This Recipe
- Bright citrus flavor with a warm, caramelized brown sugar top.
- Crunchy granola adds texture and makes it feel breakfast-worthy (and a little fancy).
- Fast broiler technique: big payoff in minutes with minimal prep.
- Easy to customize with different spices, toppings, or yogurt.
Grocery List
- Produce: 1 large grapefruit
- Dairy: unsalted butter (optional), Greek yogurt or vanilla yogurt (optional)
- Pantry: light brown sugar, ground cinnamon, kosher salt, granola
Full Ingredients
For the baked grapefruit
- 1 large grapefruit (about 14–16 oz / 400–450 g)
- 2 tsp packed light brown sugar
- 1/2 tsp ground cinnamon
- 1/8 tsp kosher salt
- 1 tsp unsalted butter, melted (optional; helps the topping brown evenly)
For topping & serving
- 1/3 cup crunchy granola (about 35 g), preferably chunky clusters
- 2 tbsp plain Greek yogurt or vanilla yogurt (optional)
Step-by-Step Instructions
Step 1: Preheat the broiler and prep the pan
Move an oven rack to about 6 inches below the broiler element. Preheat the broiler on HIGH for 5 minutes. Line a small baking sheet with foil (or parchment rated for broiling, if you have it) for easy cleanup.
Step 2: Halve the grapefruit and make it stable
Slice the grapefruit in half across its equator. To keep each half from tipping, cut a very thin slice off the rounded bottom of each half so it sits level on the baking sheet. Aim for a “shave,” not a deep cut—you don’t want to open the segments on the bottom.
Step 3: (Optional) Loosen the segments for easier eating
Place the grapefruit halves cut-side up on the prepared baking sheet. If you want a more spoon-friendly result, run a small paring knife along the membranes between segments, and around the inside edge of the rind. This helps the warm fruit scoop out easily after broiling.
Step 4: Mix and add the brown sugar topping
In a small bowl, stir together the 2 tsp light brown sugar, 1/2 tsp cinnamon, and 1/8 tsp kosher salt. Sprinkle the mixture evenly over the exposed grapefruit flesh, focusing on the center where the juice pools.
If using, drizzle 1 tsp melted butter over the top (a few drops per half). The butter is optional, but it encourages an even, glossy caramel layer.
Step 5: Broil until bubbling and caramelized
Slide the baking sheet under the broiler. Broil for 4 to 6 minutes, until the sugar is melted, bubbling, and caramelized in spots.
Broilers vary a lot, so start checking at the 3-minute mark. If your oven has hot spots, carefully rotate the pan at about the halfway point for more even browning. Don’t walk away—sugar can go from caramelized to burnt quickly.
Step 6: Rest briefly so the topping sets
Remove the pan from the oven and let the grapefruit rest for 2 minutes. This short rest helps the molten sugar topping set slightly so it stays on the fruit instead of sliding off when you serve.
Step 7: Add granola (and yogurt) right before serving
Top each warm grapefruit half with granola, sprinkling it over the caramelized surface so it sticks to the syrupy top. For a more “breakfast bowl” vibe, add a spoonful of Greek yogurt to the side or right on top, then serve immediately while the granola is crisp and the grapefruit is warm.
Pro Tips
- Choose the right grapefruit: Look for one that feels heavy for its size (juicy) with smooth, tight skin. Ruby red varieties tend to be sweeter and less bitter than white.
- Watch the broiler like a hawk: The difference between perfect caramelization and burnt sugar can be under a minute.
- Granola timing matters: Add granola after broiling (never before) so it stays crunchy.
- Want more caramel? Use a slightly thicker layer of sugar in the center of each half; that’s where the juices collect and create the most syrup.
- No butter? It still works. The sugar will melt from the grapefruit’s heat and broiler energy; butter just boosts browning and richness.
Variations
- Maple-ginger: Swap brown sugar for 2 tsp maple sugar (or brown sugar plus 1/8 tsp ground ginger). Finish with granola and a tiny drizzle of warm maple syrup.
- Coconut-almond: Use coconut granola and add 1 tbsp toasted sliced almonds on top after broiling.
- Brûlée-style: Skip the butter, use 1 tbsp superfine sugar instead of brown sugar, and broil just until glassy and crisp on top.
Storage & Make-Ahead
This recipe is best eaten immediately (warm grapefruit + crisp granola). If you need to prep ahead, you can mix the brown sugar, cinnamon, and salt up to 1 week in advance and keep it in an airtight container. Broiled grapefruit does not store particularly well; if you must, refrigerate leftover broiled grapefruit (without granola) in a covered container for up to 1 day, then re-warm gently in a 300°F (150°C) oven for 8–10 minutes and add fresh granola right before serving.
Nutrition (per serving)
Approximate, based on 2 servings (1/2 grapefruit + 1/6 cup granola each), without yogurt: 210 calories, 4 g protein, 5 g fat, 44 g carbohydrates, 6 g fiber, 26 g sugars, 95 mg sodium.
