optional: additional mangoes, chopped cilantro, lime wedges, for serving
First prepare the sauce (can be made ahead of time). Add oil, habanero peppers, mangoes, garlic, apple cider vinegar, and onions to a large sauce pan and stir over medium-high heat until onions are translucent.
Stir in vinegar, ginger, brown sugar, and salt. Bring to a boil and cook for 10 minutes, then reduce to medium and simmer for 10 minutes. Transfer sauce to a blender or food processor and blend until very smooth.
Preheat oven to 400 degrees and grease a large baking sheet. Arrange shrimp in a single layer on baking sheet. Bake for 10-12 minutes until hot throughout and crisp on the outside.
Toss shrimp in the mango habanero sauce. If desired, serve with additional diced mango, chopped cilantro, and lime wedges for drizzling on top.