Preheat the oven to 170°C (338°F).
In a bowl, mix rice flour, almond flour, baking powder, and salt together.
In another bowl, combine eggs, oligosaccharide syrup, and vegetable oil. Mix well.
Combine the dry and wet ingredients to form a dough.
Shape the dough into a long log and place it on a baking pan.
Bake in the preheated oven at 170°C for 20 minutes.
Remove from the oven, let it cool, and then slice into 1cm thick pieces.
Place the slices back on the pan and bake at 160°C (320°F) for 10 minutes per side.