Pineapple and Coconut Squares

Crust

• 115 g unsalted butter, room temperature
• 85 g brown sugar
• 100 g oat flakes, quick-cooking
• 70 g all-purpose flour
• 45 g desiccated coconut flakes

Filling

• 70 - 85 g sugar, to taste
• 2 tbsp cornstarch
• 500 g fresh pineapple, cut into chunks
• 45 g lemon juice
• 2 tbsp desiccated coconut flakes