Pineapple and Coconut Squares

Crust

• 4 oz unsalted butter, room temperature
• 3 oz brown sugar
• 3 ½ oz oats, quick-cooking
• 2 ½ oz all-purpose flour
• 1 ½ oz desiccated coconut flakes

Filling

• 2 ½ - 3 oz sugar, to taste
• 2 tbsp corn starch
• 17 ½ oz fresh pineapple, cut into chunks
• 1 ½ oz lemon juice
• 2 tbsp desiccated coconut flakes