Calamansi Streusel Loaf is a delightful baked treat that showcases the bright, tangy flavor of calamansi, a small citrus fruit popular in the Philippines. This loaf features a moist and tender cake infused with the zesty essence of calamansi, creating a refreshing and citrusy flavor profile. It's topped with a crumbly streusel topping made from butter, sugar, and flour, which adds a delicious crunch and sweetness to each slice.