Mango Crumb Cake

Preheat the oven to 350°F (175°C). Grease and flour an 8-inch square baking pan.

Whisk together flour, baking powder, and salt in a medium bowl and set aside.

Cream together butter and sugar in a large bowl until light and fluffy, about 2 minutes.

Beat in the egg until combined, then stir in vanilla extract.

Alternately add the dry flour mixture and milk to the butter mixture, beginning and ending with flour, stirring gently until just combined.

Fold in the chopped mango until evenly distributed throughout the batter.

Pour the batter into the prepared pan and spread evenly.

Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted in the center comes out clean.

Remove from the oven and allow the cake to cool in the pan for 10 minutes before turning out onto a wire rack to cool completely.