Heat the oven. Preheat to 400°F (200°C). Line a large rimmed baking sheet or shallow baking dish with parchment for easy cleanup.
Prep the fruit. Core and chop apples and pears into even chunks. Pit and slice the plums.
Leave grapes whole. If using frozen berries, don’t thaw.
Make the maple mixture. In a small bowl, whisk maple syrup, orange juice, orange zest, vanilla, cinnamon, ginger, and a pinch of salt. If using bourbon, whisk it in now.
Toss it all together. Add all the fruit to a large bowl.
Pour over the maple mixture and toss gently to coat without crushing the berries.
Arrange and dot with fat. Spread the fruit in an even layer on the pan. Dot with small pieces of butter (or drizzle with melted coconut oil). Scatter nuts and herbs if using.
Roast. Bake for 20–25 minutes, tossing once halfway.
The fruit should be tender with syrupy juices and light caramelized edges. For deeper color, broil for 1–2 minutes at the end, watching closely.
Rest. Let it sit for 5 minutes. The juices will thicken slightly and become glossy.
Serve. Spoon warm over vanilla ice cream, Greek yogurt, ricotta, pancakes, or oatmeal.
Finish with a drizzle of extra maple syrup if you like.