Preheat the oven to 350°F. Grease and line an 8-inch square pan with parchment paper, leaving overhang for easy removal later.
Prepare the Coconut Crumble Base:
Melt the butter in a microwave-safe bowl or in a saucepan over low heat.
Stir the sugar into the melted butter, then mix in the egg until smooth.
Add the flour, oats, shredded coconut, baking powder, and salt. Stir until combined, making sure no dry flour is visible.
Assemble the Bars:
Measure out 1 3/4 cups of the mixture and press it evenly into the prepared pan to form the base.
Prepare the Mango Filling:
Place the mango slices in a bowl. Toss with the sugar and cornstarch until the mango is evenly coated.
Top the Bars:
Spread the mango filling over the coconut base.
Crumble the remaining coconut mixture over the mango, leaving some spots of mango exposed.
Bake: Place the pan in the oven and bake for about 30 minutes, or until the surface is golden brown.
Cool: Let the bars cool in the pan for about 2 hours before lifting them out using the parchment paper and transferring them to a cutting board.
Make the Lime Glaze: In a medium bowl, whisk together powdered sugar, lime zest, lime juice, and vanilla extract. Add lime juice a little at a time until the glaze reaches a honey-like consistency. Drizzle the glaze over the cooled bars.
Serve: Allow the glaze to set for 10 minutes before cutting the bars into 12 squares (or 9 larger ones). Enjoy!
Details: This recipe combines tropical mango with a coconut crumble base and a zesty lime glaze for a perfect balance of sweet and tangy flavors. It’s a great dessert or snack for any occasion.