You couldn’t tell by looking at slim waste lines of many Thais, but Thai people love to eat dessert.
This includes both traditional Thai desserts as well as western fare, including cakes and ice cream. Traditional Thai desserts are quite sweet, made predominately from various combinations of rice, coconut milk, and sugar, along with a few seemingly less common dessert ingredients, such as sweet corn or kidney beans.
Some egg based Thai desserts trace their history back to the influence of Portuguese missionaries (who also introduced the chili!) While these desserts are not prominently featured on menus in Thai restaurants and infrequently ordered at the conclusion of a meal, they are occasionally served complimentarily or can be found sold at street stalls that specialize in particular desserts.
Fruit is also a common Thai dessert and is usually served plain and sliced, though Mango with sticky rice, covered in sweet coconut milk is a popular dessert when Mangos are in season.