Ondeh Ondeh Cake by Buttertrade ~ My wonderful Weekend starts with a delicious Ondeh Ondeh Cake from Buttertrade. Many Many Thanks to Buttertrade. Buttertrade - An Interesting and Catchy Name! Who is Buttertrade? Buttertrade is an online marketplace for cakes from boutique bakeries in Singapore. Make it easy for you to search across the boutique bakeries. After you order a cake from Buttertrade, they will liaise with the bakery to hand-make your cake and deliver it right where you want it. The best part is Buttertrade even reward you. You will earn Buttertrade Credits when you order from them and you will be able to use these points in your next purchase at Buttertrade.