Easy Pineapple upside-down cake - Hungry Lankan

Ingredients

• 1/4 cup salted butter
• 1 cup coconut sugar or light brown sugar
• 15 Fresh pineapple pieces about 1 cm thick 1.5inch long
• 1 cup All purpose flour
• 2 tbsp Corn flour
• 1 1/2 tsp baking powder
• 1/4 tsp salt
• 1/2 cup unsalted butter softened
• 3/4 cup Sugar
• 2 Eggs at room temperature
• 1 pinch saffron ground
• 1 tsp vanilla extract
• 1/3 cup milk